Amy Adams is a ''karaoke monster''.

The 43-year-old actress's 'Trouble With The Curve' co-star Justin Timberlake quipped that Amy ''bullied'' him into singing Disney songs with her during filming of the 2012 movie and said she turns into ''a whole new person'' at karaoke.

Speaking to The Hollywood Reporter, Justin said: ''Amy Adams is a monster, more specifically a karaoke monster.

''Let the record show that this woman looking all sweet and innocent with the face of an all-American angel turns into a whole new person, a beast in fact, when she gets anywhere near a karaoke machine.''

Justin added that during filming in Atlanta, after five tequilas, ''she pretty much bullied me into singing 'A Whole New World' from Disney's Aladdin with her''.

However, the former star of Disney's 'Mickey Mouse Club' would love to team up again with Amy for karaoke but on one condition.

He said: ''Next time, I'm choosing the god damn song because I have a history with Disney. There's a whole PTSD thing going on.''

Meanwhile, Justin, 36, previously claimed Amy saved his life on the set of 'Trouble With The Curve'.

He said: ''We shot a scene in the Blue Ridge Mountains and the water was just below fifty degrees. It was freezing.

''Amy actually saved my life. Unbeknownst to me, I was turning blue and couldn't process a thought, so she actually saved my life. I owe Amy Adams my life.''

Amy added: ''I saved [Justin's] life; I did. Some people call it mouth-to-mouth, some people call it kissing - any way, it's nice work if you can get it.''