Late Night Last Night: Will Ferrell as Little Debbie, Hannibal Buress on Launching Cosby Backlash (Video)

Will Ferrell Little Debbie Still - H 2015

Will Ferrell has a surprising new gig.

The Get Hard star was a guest on Wednesday's Tonight Show, where he explained why he was wearing a straw hat and plaid dress.

Watch more Late Night Last Night: Will Ferrell Sings New "Danny Boy" Lyrics, Jennifer Garner Hit by Pies (Video)

"I have to wear it — I'm the new face of Little Debbie snack cakes," he told host Jimmy Fallon.

To see Ferrell sing the supposed Little Debbie jingle, watch the video below.

Read more Box-Office Preview: Shailene Woodley's 'Insurgent' Could Hit $60M

Insurgent star Theo James stopped by the Late Show, where Dave Letterman asked him to name the least enjoyable job he's ever had.

"I basically worked as a construction worker — I thought I was being tough," James admitted about a gig from his teenage years.

To hear him describe an incident that may have shortened his life expectancy, watch the segment below. 

Jimmy Kimmel spoke to comedian Hannibal Buress on Jimmy Kimmel Live!, asking how he felt to be the person to kickstart the backlash against Bill Cosby.

"The weirdest thing about getting a death threat from a male bodybuilder slash stripper on Facebook is when you click on his profile and see that you have one mutual friend," Buress said during the episode that was filmed in Austin.

Read more Comedy Central Orders Hannibal Buress Comedy Series

The interview, in which Buress also discusses his involvement in the Justin Bieber roast, can be seen below.

Twitter: @_RyanGajewski