Photo: Universal Music Group
Update, Monday, January 31 at 10:05 p.m.: No ragrets. Machine Gun Kelly has decided to change the name of his upcoming album to Mainstream Sellout — despite the fact that he and Travis Barker got matching tattoos of the previously announced title, born with horns, six months ago. According to MGK, born with horns will still be the name of a song on the album. But he still looke a little sheepish when he broke the news to Barker in an Instagram video. “OK, we’re friends no matter what, right?” MGK started. After giving Barker a fist bump, he continued, “Remember when we got the album name… the new album name tattooed on our arms?” Barker, who is executive producing the album, immediately guessed…