Cause you know I'm all about that... baaaad guy.<br /><br />Pop princess Meghan Trainor recently stopped by BBC Radio 1 to promote her third studio album Treat Myself (due out Jan. 31). Toward the end of the interview, host Scott Mills engaged Trainor in a round of "Your Lyrics Different Song," asking her to perform the words from one of her hits over the tune of another.<br /><br />Singing to the music of Billie Eilish's "Bad Guy," Trainor revamped her 2014 hit "All About That Bass" — turning the throwback summer anthem into a chilling remix.<br /><br />She only sang the first chorus and verse, but was instantly sold on the strength of her new hit. <br /><br />"Wow, yeah. I got lost, I just got lost. This is a fuckin' bop!" she joked. "I left all of you guys for a moment, and was like, 'Why is this my favorite song?'" <br /><br />Trainor later shared a clip of the interview on Instagram, tagging Eilish. Here's looking at the 2020 collab the internet now demands. We're thinking "Dear Future Xanny" ... or something like that?