Lady Gaga's ex Christian Carino 'likes' Irina Shayk's sexy Instagram lingerie photo

Irina Shayk may be on a mission to show ex Bradley Cooper what he's missing, but it appears she's caught the eye of someone completely different: Christian Carino. That's right, Lady Gaga's former fiancé.

The 33-year-old Russian model posted a very cheeky photo of herself standing by a waterfall in Iceland yesterday during a photoshoot with lingerie brand Intimissimi — and Carino 'liked' the photo on Instagram.

The sexy snap comes just one week after Shayk split from Cooper following reports their four-year relationship was never the same once he signed on to direct and star in A Star is Born alongside Lady Gaga. In February, Gaga and talent agent Carino also went their separate ways after two years together, with a source telling People at the time that there was "no long dramatic story" as "it just didn't work out."

Still, that didn't stop rumours suggesting Cooper, 44, and Gaga, 33, became romantically involved during filming — rumours that apparently caused problems in Gaga and Carino's relationship as well as Shayk and Cooper's.

"The rumours about Bradley and Gaga having a love affair didn't help especially with his constant travels [promoting the film]," another People source revealed yesterday. "He has a huge and overwhelming connection to Gaga but whether it becomes a real love story in their lives for all the world to see is premature, and it's difficult to speculate at this sensitive time."

Meanwhile, back in LA, Cooper — who shares two-year-old daughter Lea with Shayk — was seen out for the first time since the split, enjoying a boys' night at West Hollywood's Sunset Tower Hotel on Monday night.

"He looked really upbeat and chill," one bystander told E! News.

Chill? He probably hasn't seen Shayk's hot Instagram pic yet then…