Here We Go Again is the second studio album by American singer Demi Lovato. It was released on July 21, 2009, through Hollywood Records. Unlike her previous album, Don't Forget (2008), Lovato did not collaborate with the Jonas Brothers, as she wanted to work with different people and give the album a personal approach. Lovato collaborated for the album with established songwriters and producers, such as E. Kidd Bogart, Gary Clark, Toby Gad, John Mayer, Jon McLaughlin, Lindy Robbins and John Fields.

Here We Go Again derives mainly from the pop rock genre, mixed with influences of rock, power pop, soul and pop. Lovato described the album as more "relaxed" than her previous album, while exploring more mature sounds and lyrics. Critical reception of the album was positive; critics praised Lovato for not relying on vocal manipulations and instead showing off her natural ability. Although some critics called the album catchy, others felt that it was predictable and at times too much alike Kelly Clarkson. In the United States, the album debuted at number one on the Billboard 200 selling 108,000 copies during its first week of release, Lovato becoming the eighth solo artist to top the chart under the age of 18. Since its release, the album has sold over 500,000 copies in the country, and has been certified Gold by the Recording Industry Association of America (RIAA). Internationally, the album peaked inside the top 40 in Australia, Brazil, Canada, Greece, Mexico, New Zealand and Spain, and was certified platinum in Brazil.

The lead single from the album, its title track, was released on June 23, 2009; it was Lovato's first solo single to reach the top 20 on the Billboard Hot 100, peaking at number 15, and has been certified platinum by the RIAA. "Remember December" was released as the second and final single in Europe on January 18, 2010. To promote the album and her debut effort, Lovato embarked on her first concert tour, entitled Demi Lovato: Live in Concert.