Josh Groban

The Jennifer Hudson Show

Self

Celebrity IOU

Self

The Kelly Clarkson Show

Self

American Idol

Self

Crazy Ex-Girlfriend

Josh Groban

The Muppets

Self

Life in Pieces

Ian

The Late Show with Stephen Colbert

2015

The Late Late Show with James Corden

Self - Guest

Last Week Tonight with John Oliver

Self

The Tonight Show Starring Jimmy Fallon

Self

Watch What Happens Live with Andy Cohen

Self - Guest

Glee

Josh Groban

Parks and Recreation

Josh Groban

NPR Tiny Desk Concerts

Self

The Graham Norton Show

Self

Tim and Eric Awesome Show, Great Job!

Self

The One Show

Self

It's Always Sunny in Philadelphia

Josh Groban

The Office

Walter Bernard, Jr.

American Dad!

Daniel (voice)

CSI: NY

Josh Groban

The Ellen DeGeneres Show

Self

Jimmy Kimmel Live!

Self

American Idol

Self

Star Academy

Self

Vivement dimanche

Self

Ally McBeal

Malcolm Wyatt

The View

Self

Never Mind the Buzzcocks

Self

Late Night with Conan O'Brien

Self - Musical Guest

The Tonight Show with Jay Leno

Self

The Simpsons

Professor Frink's Singing Voice (voice)

LIVE with Kelly and Mark

Self

Wetten, dass..?

Self

NDR Talk Show

Self

3 nach 9

Self

Great Performances

Self

Tony Awards

Self - Host