Can you imagine having the power to pick out a hot celeb and cast them in your music video just so you could snog them and fall in love? (Also it helps to first imagine you're a mega famous singer and that's your life.) Okay so we’re not saying that exactly what happened with these celebs but you never know, right?

These sneaky famous folk cast someone in their music video and fell in love after it wrapped...

BUT FIRST, CHECK OUT THE KINKIEST CELEB CONFESSIONS EVER...

1. John Legend and Chrissy Teigen

In 2007, John needed a model to star in his Stereo music video and that model turned out to be Chrissy. According to her, the pair ‘hooked up’ after the shoot and kept in touch for a year after until they decided to give things ago. She told Cosmo: “I let him be himself for a while,” she said. “The worst thing you can do is try to lock someone like that down early on, then have them think, There’s so much more out there. I played it cool for a long time. Never once did I ask, ‘What are we?’ Marriage was never my goal, because I’ve never been very traditional. I was just happy to be with him.”

2. Lady Gaga and Taylor Kinney

The singer met the Chicago Fire actor in 2011 when he was a little known model after he was hired to star as a her love interest in the video for You & I. Soon after the video was released rumours started flying the two were an item and they ended up dating for five years.

3. Nathan Sykes and Ariana Grande

It was a match made in popstar heaven when The Wanted’s Nathan and Ari recorded the loved up duet Almost Is Never Enough. After meeting for the video shoot, the pair quickly fell for each other and dated for a few months in 2013. She told Entertainmentwise: "I saw him in March on a red carpet, and we locked eyes with each other all night. I thought, he was cute as hell. Nothing happened obviously. And then, the duet came about. We hadn't met really still, until we shot the video. It was a really fun day - he was very sweet and cute. We started talking and then it just went from there."

4. Nick Lachey and Vanessa Minnillo

Ironically, Nick cast Vanessa as the love interest that was supposed to represent his ex-wife Jessica Simpson in the break up song he wrote about their relationship. After the video for What’s Left Of Me debuted in 2006, the pair announced they had started dating.

5. Josh Kelley and Katherine Heigl

While the actress was still playing Izzy Stevens on Grey’s Anatomy she took a little side gig and starred in Josh’s music video for Only You in 2005. She later admitted on Meredith Viera that she had used another singer John Mayer to hook him in. She said: “These musicians, they are competitive and jealous of each other. [So] over the phone, because he was on tour, I was like, 'Josh, I've got to be honest. I just want to know where we stand because if not, I might try to pursue something with John.'”

6. Travie McCoy and Katy Perry

Before she was a mega popstar, Katy was cast in the video of Gym Class Heroes’ video for Cupid’s Chokehold. The pair dated for two years, splitting just as Katy was hitting the big time for I Kissed A Girl in 2008. It was rumoured that he was the subject of the song Circel The Drain on her album, Teenage Dream.

7. Pink & Carey Hart

Okay so although the pair didn’t meet on the set of a music video they actually got back together on the set of one. The pair were headed for divorce in 2009 when Pink asked her ex Carey to star opposite her in her video for So What, a song about their split. Apparently sparks flew and the pair ended up reconciling. Love this.

And now, these celebs have some seriously shocking pasts that you need to witness...]