RedOne has written and produced for various artists , including Sherefa Yorks .
In addition , he has written for and produced for various artists , in alphabetical order : Akon , Marc Anthony , Justin Bieber , Birdman , Zander Bleck , Mary J Blige , Brandy , Alexandra Burke , Cassie , Cheb Khaled , Cher , Cross Gene , Taio Cruz , Kat DeLuna , Jason Derulo , Jade Ewen , Mylène Farmer , Livvi Franc , Selena Gomez , Ayumi Hamasaki , Enrique Iglesias , Inna , Jean-Roch , K'naan , Katia , Kika , Sean Kingston , KMC , Little Boots , Cher Lloyd , Pixie Lott , Austin Mahone , MIKA , Nicki Minaj , Mohombi , Nayer , Orianthi , Lionel Richie , Kelly Rowland , Paulina Rubio , Nicole Scherzinger , Space Cowboy , Usher , and Lil Wayne .