This is the second single by R&B singer Rihanna, which is from her fifth studio album, Loud
. The song was written by Ester Dean whose previous credits include Usher's "Hot Toddy
," Katy Perry's "Firework
" and Christina Aguilera's "Not Myself Tonight
." Dean also had a hit under own name with "Drop it Low
." Rihanna said of Dean to Billboard
magazine: "She really captured me, everything I would say and how I would say it. Some people get it halfway right. She just gets it and knows exactly what you want to hear."