Lady GaGa has struck up an unlikely friendship with supermodel-turned-photographer Helena Christensen's ex-boyfriend Norman Reedus after he appeared in her new music video, Judas.
The pop superstar recently split from her on/off boyfriend Luc Carl, but that hasn't stopped her from having fun - she's been spending quality time with Walking Dead star Reedus.
A source tells America's Star magazine, "Gaga and Norman became really close when he appeared in the video for her song Judas earlier this year. Their chemistry is incredible."
The actor has become a big fan of Gaga, gushing, "She's the coolest girl ever. She's superchill... very personable with everyone around her. It's kind of amazing to watch."
However, the singer admitted last week (ends13May11) she currently has no time for romance.
Gaga said, "There's no boyfriend. I haven't been on any dates recently because I've been working so hard."