Machine Gun Kelly, born Richard Colson Baker and also known as "MGK," was there to to mark The Source magazine's release of its annual Power 30 issue. As first reported on Tuesday, the rapper performed in a manner
not befitting the rather staid Microsoft, rapping things like “Suck my d*ck; I’m up in this motherf*cker. MGK in this b*tch. F*ck these computers.”
Certainly, since Microsoft's Windows platform is on those computers, we don't think they appreciated his sentiment. In addition, it was reported that MGK stomped on at least five computers.
MGK was angered when the Microsoft store cut his music, saying "I'm not getting down" before demanding they "play that sh*t." Microsoft eventually called police.
MGK's sentiments were made readily available on Twitter. He tweeted a photo showing himself giving the finger to onlookers and employees (above, in censored form).
A video of his performance (or antics) is available, embedded.