Former NBC Today show host Meredith Vieira actually sang ``Call Me Maybe'' to Jay Leno Friday evening.
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Meredith Vieira sings 'Call Me Maybe' to Jay Leno
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Melissa McCarthy hosting SNL
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Ryan Seacrest makes a big announcement on 'Today' --
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Jennifer Hudson sings ``Where You At?''
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One Direction performs on Today show
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GLORIANA to perform on 'the TONIGHT show WITH JAY LENO'
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Norah Jones performs live on Breakfast Television
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Fleury considered playing himself on stage
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Cee Lo Green breezes through 'Forget You' and 'Bright Lights Bigger City' on 'today' show
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Sirius (siri) sued by Howard Stern
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Susan Boyle to sing live at Rockefeller Plaza in New York for 'Today' show
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Conan O'Brien returns to Tonight Show after concussion
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The Daily Show's Mo Rocca comes out
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Tony Vincent sings for survival on ``the Voice''
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Ann Romney to cohost 'Good Morning America'
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Yoko Ono ``choked up'' by Lady Gaga
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Danny O'Donoghue defends 'the Voice' against fix claims