BTS is kicking off the weekend on a high note. The Korean pop group dropped its new single "Idol" from its highly anticipated album Love Yourself: Answer on Friday. But that's not all. The artists also revealed a surprise collaboration with Nicki Minaj. That's right! The "Super Bass" rapper appears on a digital version of the K-pop stars' new hit. However, according to Billboard, she does not appear on the group's physical album. Minaj shared the big news on Twitter.