John Mayer ‘Late Late Show’ Instagram [PHOTO] Post Featuring Super Bowl Halftime Sharks: Katy Perry Boyfriend Kicks Off CBS Hosting Gig With Andy Cohen & ‘Selma’ Song Composer John Legend [WATCH]

Musician John Mayer is currently in the middle of hosting CBS' The Late Late Show. The beau to Super Bowl Halftime Show performer Katy Perry kicked off his stint just last night, Feb. 4 and will finish tomorrow, Feb. 6. During last night's starter, the musician took some time to share the stage with not only famed pianist John Legend, who is nominated for an Oscar for his original song "Glory" from last year's epic film Selma but also the likes of Andy Cohen. Additionally, he also borrowed a couple of sharks from Perry's Super Bowl performance. And best of all, there's Instagram evidence...

"What can you expect from #JMLATELATESHOW tonight? An insightful sit-down with the Super Bowl Halftime Sharks and marine biologist. Andy Cohen, Alison Becker and musical guest John Legend join me tonight on CBS!" Mayer captioned the below photo with – showing off just some of the fun he's having on set.

Take a look at the photo from Mayer's Instagram account here:

 What can you expect from #JMLATELATESHOW tonight? An insightful sit-down with the Super Bowl Halftime Sharks and a marine biologist. Andy Cohen, Alison Becker and musical guest John Legend join me tonight on CBS!

A photo posted by johnmayer (@johnmayer) on Feb 4, 2015 at 9:37pm PST

And in case you missed it, there appears to be footage from last night's Late Late Show with John Mayer premiere. Watch that here:

Last week, MStars News reported that Mayer was prepping for his gig by watching old videos of The Tonight Show. So now we have to ask: did the musician's studying pay off?

Thanks @paleycenter for access to the greatest DVR ever. With @jordanrubin rifling through thousands of hours of late night talk shows looking for one good reason why I should be allowed within 50 feet of that desk. Guest hosting CBS Late Late Show next Wednesday to Friday. #JMLATELATESHOW #RESPECTTHEDESK A photo posted by johnmayer (@johnmayer) on Jan 28, 2015 at 4:04pm PST

Readers, did you tune into Mayer's CBS premiere? What did you think?

Let us know your thoughts below.