of Snow Patrol's "Just Say Yes" for the Live Lounge. "Once" entered the UK Singles Chart at number one. "The Boy Who Murdered Love", written and produced by Chris Braide (with lyric contribution from Vickers), was released as the second single and charted at number 36 in the UK. During mid 2010, Vickers performed at numerous music festivals such as the Freedom Festival, iTunes Festival, Oxygen Festival, Radio 1's Big Weekend, Summer Sundae, T in the Park, T4 on the Beach, and V Festival. Vickers also supported Mika at the Eden Sessions in June 2010. Vickers' third single was a previously unheard track titled "My Wicked Heart", co-written by Vickers and producers Dee Adams and James Earp, which features Vickers playing the trumpet. The single was released in October 2010 and reached number 13 in the UK; the same month, it was reported that Red Hot Chili Peppers was considering legal action over similarities between the chorus of the band's well-known song "Under the Bridge" and "My Wicked Heart". Vickers said in an interview that she had been listening to "Under the Bridge" shortly before working on "My Wicked Heart" and had noticed but decided to ignore the similarities. In an interview to promote the single, Vickers announced the possibility of Songs from the Tainted Cherry Tree getting a solely digital download re-release, and also stated, "I've been writing so much and got so many tracks under my belt. I think I'm very close to ready for the second album actually." The fourth leg of the Songs from the Tainted Cherry Tree Tour began in November 2010 and included dates in Ireland as well as the UK. At the end of 2010, Vickers became RCA's highest grossing domestic artist. 2011–2015: Music to Make Boys Cry and side projects In June 2010, Vickers announced that she had started preparing songs for a second album. She co-wrote material with musicians such as Nerina Pallot, Eg White, Starsmith, Chris Braide, and Dee Adam. In January 2011, Vickers travelled to Los Angeles, United States, to co-write material with John Shanks and Diane Warren, and played her debut USA gig at Cherry Pop in West Hollywood (promoted via Perez Hilton). Vickers co-wrote the 2011 Enrique Iglesias and Jennifer Lopez single "Mouth 2 Mouth" for Iglesias's reissue album Euphoria Reloaded. In June 2011, Vickers revealed on her official Tumblr account that she had parted company with