Garrett Robin Hamler, better known professionally as Sean Garrett, is an American R&B singer, songwriter and record producer. Garrett is responsible for a series of chart-topping compositions, most notably Usher's "Yeah!" which ranks second on the Billboard Hot 100 Songs of the Decade for 2000–2009, and other songs written by him which include Ciara's breakout track "Goodies", Teairra Marí's debut single "Make Her Feel Good", Mario's single "Break Up", Nicki Minaj's first single "Massive Attack", Pussycat Dolls's hit single "Buttons" and Britney Spears' "Toy Soldier".