Chris Pratt -- Hell Yeah, I'll Take a Shot ... at Margaritaville (TMZ TV)

'Cause fighting dinos in “Jurrassic World” and possibly being the new Indiana Jones wasn't enough -- Chris Pratt decided to try his hand at singing WITH Jimmy Buffett!

And the reviews are in -- not only can he sing "so good" ... he also looks "so good." Pratt’s not bad either.