Krisin Chenoweth performs the Oscar-nominated best original song “That’s How You Know” at Academy Awards
Source:http://www.celebutopia.net/forum/showthread.php/kristin-chenoweth-80th-annual-academy-awards-arrivals-february-63409.html
http://www.celebutopia.net/forum/showthread.php/krisin-chenoweth-performs-oscar-nominated-best-original-song-63495.html