Cher reached a new commercial peak in 1998 with the dance-pop album "Believe", whose title track won her the "Billboard" Music Award for Hot 100 Single of the Year and became the biggest-selling single of all time by a female artist in the UK. It features pioneering use of Auto-Tune to distort her vocals, known as the "Cher effect". Her 2002–2005 became one of the highest-grossing concert tours of all time, earning $250 million. In 2008, she signed a $60 million deal to headline the Colosseum at Caesars Palace in Las Vegas for three years. In 2018, Cher returned to film for her first on-screen role since 2010's "Burlesque", starring in the musical romantic comedy film "Mamma Mia! Here We Go Again". Inspired by the film, the album "Dancing Queen" (2018) debuted at number three on the "Billboard" 200, tying with 2013's "Closer to the Truth" for Cher's highest-charting solo album in the US.