"Jenny", also titled "Jenny (I Wanna Ruin Our Friendship)", is a song written, produced and performed by the virtual band Studio Killers, released 3 May 2013 as the fourth single from their self-titled debut studio album. Played in the key of B major, the song, inspired by singer Chubby Cherry's crush on a person named Jenny, discusses a girl falling in love with her best friend. The single was a number-two hit on the Finnish Singles Chart, and was received positively by critics. A remix featuring German singer Kim Petras was released on 26 March 2021.