STAGE TUBE: Kristin Chenoweth Appears on WATCH WHAT HAPPENS

Broadway vet and GCB star Kristin Chenoweth joined Bravo's Andy Cohen on last night's WATCH WHAT HAPPENS LIVE. Chenoweth was challenged to play Cohen's popular game show 'Plead the Fifth'. See how she did below!

Chenoweth won a Tony Award for her role as Sally Brown in the Broadway musical You're A Good Man, Charlie Brown. She is also celebrated for originating the role of Glinda in Wicked, which also earned her a Tony Award nomination. In 2010, she appeared as Fran Kubelik in Promises, Promises alongside Sean Hayes.

The actress won an Emmy Award for her performance as Olive Snook in the television dramedy Pushing Daisies. Chenoweth is also known on TV for playing Annabeth Schott in The West Wing, and most recently as April Rhodes in GLEE, a role for which she was Emmy-nominated in 2010 and 2011. She also had her own TV series, Kristin. Her film credits include Bewitched, The Pink Panther, Running With Scissors, Stranger Than Fiction, Four Christmases, RV and the upcoming films Ed Zwick's Family Weekend and Outrun.

The country pop album Some Lessons Learned was Chenoweth's fourth album on Sony. Her debut album Let Yourself Go (2001) centered on show and movie musical classics including the title track, from the 1936 Fred Astaire film Follow the Fleet. It was followed in 2005 by As I Am, an album of Christian music, and in 2008, a holiday album A Lovely Way To Spend Christmas. Chenoweth documented her life in her 2009 memoir A Little Bit Wicked: Life, Love, And Faith In Stages. She currently stars in ABC's new drama series GCB as Carlene Cockburn.