Lady Gaga is an American singer, songwriter and actress. She has a net worth of $320 million as of 2019. She is one of the best-selling music artists of all time, having sold over 150 million records worldwide. Gaga began performing as a teenager, making her first professional appearance on stage in 2004. Her debut album, The Fame, was released in 2008 and became a global success. It spawned the singles Just Dance and Poker Face, which both topped the charts in multiple countries.