Drake may have taken his reported fallout with Madonna [1] one step further on Sunday. During the rapper's concert in Houston, he traded the icon for his ex Rihanna [2] in the lyrics of "Madonna [3]," the song in which Drake famously references the "Ghosttown" singer. "You could be as big as Rihanna," he rapped. The lyric change follows Madonna's confession about kissing Drake [4] at Coachella in April. "I kissed a girl, and I liked it," she said in a video Q&A released in early May. Weeks beforehand, Drake thanked Madonna for the smooch [5], even though the look on his face during the kiss sparked speculation [6] that Madonna's move was unwanted. Check out Drake's performance in the clip below, and stay tuned for Madonna's reaction.