Lady Gaga celebrates engagement with fiance, his co-stars

Los Angeles: Pop star Lady Gaga and actor fiance Taylor Kinney celebrated their engagement with his 'Chicago Fire' and 'Chicago PD' co-stars including Sophia Bush.

Bush took to Instagram to share a photo of her and the 'Poker Face' hitmaker at the celebration, reported Aceshowbiz.

In the black-and-white photo, the actress is seen holding Gaga's hand while the 'Born This Way' songstress wraps her other hand on Bush's shoulder.

She captioned it, "@LadyGaga, naturally. She SLAYED the #Oscars and now she's snuggled up with the #ChicagoFam celebrating love. 'The Oscars were amazing, but this!? This is everything.' Oh #TaylorKinney you're a lucky man!! #love #congrats."