Globo is a green alien character in High On Life who can be found sitting in a corner of Blim City next to a big yellow alien guy with one eye who speaks for Globo.
Globo himself CAN speak, but apparently in a language that cannot be processed by the translator microbes - so all you can hear coming out of his mouth is farts. The shape of Globo's head is probably best described- no offense - as "butt-shaped" with googly eyes on each cheek.
The yellow guy will speak for Globo if one is trying to begin a conversation with him, and will tell the player, that Globo loves music so much, giving also the hint to get Globo a Drum.
If you look around Mr. Keep's Pawn Shop, you will find a drum. Globo will immediately start playing the drum and "singing" after you give it to him. After a while, the audience around him is getting bigger and at some point, Globo will be gone. His yellow pal will then tell about the big things going on for Globo - a record deal and his gig in a late-night-show on TV.
When some more time has passed, one also can find posters with him on the city walls, and the yellow guy also will be gone.
To get the achievement, one now only must watch Globo when he's in the TV-show. That is possible, if one explores Blim City one more time before the last bounty mission to beat Garmantuous. However, this achievement might need the right timing and some players mentioned they encountered a bug, where Globo's story won't proceed.[1]