Credits Credit As Songwriter Britney Spears "Body Ache" w: David Guetta Lil Wayne "Start A Fire" Ft. Christina Milian Taeyeon of Girls Generation "I" Havana Brown "Whatever We Want" Erika Jayne "How Many F**ks" Christina Milian "Start A Fire" Alli Simpson "Material Boy & I Won't Remember You Tomorrow" AJ Mitchell "No Plans" My Crazy Girlfriend "Crazy Stupid Love", "Go F**k Yourself" Aaron Carter "I Ain't Gonna Take No More" My Crazy Girlfriend "Kings & Queens" entire EP Avicii "From Here" Paris Blohm "Get There" Starkillers "Sorry For You" Ron Reeser "Everything" and "Anywhere You Are" Austin Leeds "In Da Club" Steve Smooth "I'm Not Sorry" Credit As Background Vocalist Britney Spears "Circus" Britney Spears "Scary" Britney Spears "Gasoline" Britney Spears "Trouble For Me" Britney Spears "(Drop Dead) Beautiful" Britney Spears "Inside Out" Britney Spears "Till The World Ends" Britney Spears "Hold It Against Me" Loreen "Heal" Miley Cyrus "SMS" Ft. Britney Spears Britney Spears "Chillin' With You" Britney Spears "Tik Tik Boom" Britney Spears "Til It's Gone" Britney Spears "Work Bitch" RuPaul "Adrenaline" Simple Plan "Saturday" Simple Plan "I Don't Wanna Be Sad"