It’s cool, you guys. He gave big ups to Jesus. (Photo by Scott Harrison | Retna)

Before his sound booing at the Billboard Music Awards, Justin Bieber took Selena Gomez to see Love Saturday, because apparently they’re back together now. And apparently Taylor Swift wasn’t too happy about Gomez hanging off the Biebs backstage after Billboard.

Bieber wore sunglasses during Love, because he’s just determined to cement his spot as the douchiest young star in the world (look out, Chris Brown!). But, you know, he’s 19 and doing a pretty good job, and we should probably be focusing on the part where he’s an artist. An artist who wears shiny pants and a headset microphone to craft his art.

By Jason Scavone

But was it in an elevator? (Photo by Ana Dobrijevic)

Frank Marino understudy Steven Tyler was still hanging around town this weekend, making the Cirque rounds by hitting up Love on Friday night. It was his fourth time seeing the show, because, again, Steven Tyler is exactly like your crazy old aunt. There’s no way that guy doesn’t own six cats with increasingly elaborate names.

By Jason Scavone

And then Cirque promptly shoved him in a trunk. (Photo by Ana Dobrijevic)

Dr. Ken Jeong continued The Hangover Part III’s all-out assault on Cirque shows by checking out Love on Saturday along with his wife. When he went backstage he dropped to the floor to bow to the cast. Bradley Cooper was also at the show on Friday. He also hit up the Qua Baths and Spa at Caesars, where the movie has been doing a lot of its filming over the past few weeks. Cooper was also spotted at Bacchanal Buffet and Rao’s, with Robert De Niro and Randy Couture. Because where else would you expect De Niro to eat? Someplace that didn’t hearken back to a beloved Mafia institution in New York?

By Jason Scavone

Is it time for us all to admit that Bono is basically morphing into Elton John? (Photo by Bryan Steffy)

Bono was in town to celebrate his daughter Eve Hewson’s 21st birthday. That … that has to be awkward, right? You just turned 21, and all you want to do is go out and get blitzed, but you’re there with your dad. And your dad is yelling at you about Africa even though there’s nothing you can do about it from inside The Mirage.

Bono, along with wife, Ali, and a few others, were at the 7 p.m. performance of Love last night — after a birthday dinner Saturday at Tao — working through some vodka tonics and brooding about Third World debt relief. We assume. Bono said his favorite part of the show came during “A Day in the Life,” calling the sequence “Absolutely Amazing.”

He went backstage after the show and was heard asking the cast when Cirque was going to get around to making a U2-based show. Which means he hasn’t seen Viva Elvis or Michael Jackson: The Immortal.

By Jason Scavone

Kylie Jenner, one day too your face will be that overly tanned and surgically altered. (Photos by Denise Truscello)

The littlest Kardashians — sweet Jesus, please let them be the littlest Kardashians — Kylie and Kendall Jenner were at Love last night while in town to do some promotion for Kardashian Khaos. At what point does having a 14-year-old girl do marketing for your store that sells Khloe-flavored junk basically become the 21st century equivalent of an Industrial Revolution textile factory? But those girls are so good at promotions. It’s because they’ve got such small hands.

By Jason Scavone

Edward Baggyeyes. (Photo by Lauren Lubas)

Director Tim Burton, who at this point looks like a shambling-yet-quirky nightmare out of a Tim Burton movie, went with Giles Martin to see Love last night. Burton is in town for CinemaCon — where last night Sasha Baron Cohen stayed in character and threatened to blow up a bunch of execs if they didn’t put The Dictator in theaters.

Burton yesterday presented the International Filmmaker of the Year Award to Timur Bekmambetov, director of Abraham Lincoln: Vampire Hunter. So … apparently there wasn’t much going on in the international film scene this year. Suck it, Nicholas Winding Refn.

Sylvester Stallone also picked up a Career Achievement Award. We’re one Kurt Russell award away from the Tango & Cash sweep.

By Jason Scavone

Actually, this really looks like Running Man 2: Clown Chasin’ (Photo by Lauren Lubas)

If there’s one thing Love didn’t have to worry about last night, it was Predators. Also? This guy.

That’s because Arnold Schwarzenegger was in the house, checking out the 9:30 performance with a crew of six that did not include Skeletor. Earlier, he ate at Strip House.

By Jason Scavone

This is exactly how we imagined Ghost World 2 in our heads. (Photos by Cashman Photography)

Love wasn’t messing around last night, pulling in off-duty Steves Carell and Buscemi, who had been filming Burt Wonderstone at Bally’s during the day. They were there with 13 of the movie’s producers, writers and directors, including Emmy winner Don Scardino (30 Rock).

Buscemi was also at the show on Sunday, but we’ll chalk this up to being one more delightfully eccentric Buscemosity.

Meanwhile, rage-inducing couple Rick Fox and Eliza Dushku were at the ealry show with two other friends — neither of whom were Walter Motherfucking White himself, Bryan Cranston, who was also at the performance. God, this is the closest Love has ever come to breaking out in meth-based violence. At least since the last time Fergie was there, anyway.

By Jason Scavone

Does Zooey Deschanel know Shannon Woodward stole the hair off her head? (Photo by Cashman Photography)

The stars of Raising Hope — a show that is tragically not a television spin-off to Raising Arizona wherin Nic Cage and John Goodman struggle as two single guys struggling to bring up a petulant teen who just found out she was kidnapped from her real parents 15 years prior — were at Love last night. Martha Plimpton, Shannon Woodward and Garret Dillahunt were at the show while they’re in town shooting an episode of the sitcom.

By Jason Scavone

It’s the daintiest crop-in-the-teeth moment ever. (Photos by Scott Harrison | Retna. Additional photo by Sam Fischer)

It’s not just that Alice Cooper has interests outside of guillotining dolls on stage or feeding his Frankenstein or whatever. It’s that his outside interest are so aggressively innocuous. It’s disconcerting. We can’t ever shake the feeling that this is all an elaborate piece of performance art — like he chose leisure activities so far afield that we’re all chumps for not seeing this for the scam it is.

It’s not just the golf — Cooper was at Love for the second time on Sunday. Twice! He’s been to Love twice! He also stayed at the Hard Rock with wife, Sheryl, and their son, Dash, who was celebrating his 21st birthday. Lunch at Pink Taco, gambling at the roulette table and breakfast yesterday at Mr. Lucky’s? Why is Alice Cooper doing the same things any tourist in the world can do when he could be out … we don’t know … stripping out of a spacesuit while wearing Clockwork Orange makeup?

Cooper is working on a follow-up to 1975′s Welcome to My Nightmare — called Welcome 2 My Nightmare and just got back off a seven-week European tour, taking a break before he starts the American leg. Which will hopefully be put in that guillotine.

By Jason Scavone