Stefani Joanne Angelina Germanotta, known professionally as Lady Gaga, is an American singer, songwriter, and actress. She is known for her unconventionality and provocative work, as well as visual experimentation. Gaga began performing as a teenager, singing at open mic nights and acting in school plays. She studied at Collaborative Arts Project 21, through New York University's Tisch School of the Arts, before dropping out to pursue a music career. After Def Jam Recordings canceled her contract, Gaga worked as a songwriter for Sony/ATV Music Publishing, where Akon helped her sign a joint deal with Interscope Records and his own label KonLive Distribution in 2007. She rose to prominence the following year with her debut album, the electropop record The Fame, and its chart-topping singles "Just Dance" and "Poker Face". A follow-up EP, The Fame Monster (2009), featuring the singles "Bad Romance", "Telephone", and "Alejandro", also proved successful.