which starred Aly & AJ. Into the Rush has sold 839,000 copies in the United States and one million copies worldwide. The album received positive reviews from critics. Fran Grauman from About.com gave the album a four star rating, praising Aly and AJ's "ton of talent" and "experience". Allmusic gave the album a mixed review, saying it "doesn't venture further than offering a few empowering ballads". AMG praised them for having a real singing ability, citing "Aly & AJ can actually sing – their vocals have more personality than prefab Disney hopefuls like Hayden Panettiere or Caleigh Peters – and the arrangements are slick without resorting to flashily empty pap." The review finishes by remarking, "Into the Rush is listenable, likeable and more about being memorable than being a Disney product." The album became the 112th best-selling album in the United States in 2006. The sisters were involved in various Walt Disney Records projects. The "Aly & AJ Concert" took place on July 24, 2005, at the Henry Fonda theater in Hollywood, California. The aired concert was cut to five songs. The sisters opened for the Cheetah Girls in December 2005 on the Cheetah-licious Christmas Tour. Into the Rush was re-released in August 2006 with three new songs, including the single "Chemicals React" and new versions of "Collapsed" and "Something More". This version served as their first album release in the United Kingdom. "Chemicals React" peaked at number 50 on the Billboard Hot 100. On September 26, 2006, the sisters released their second studio album, the Christmas-themed Acoustic Hearts of Winter, which contains contemporary recordings of traditional Christmas songs. Acoustic Hearts of Winter debuted at No. 78 on the Billboard Hot 100, selling over 19,000 copies in its first week. The album also charted the U.S. Billboard Top Holiday Albums, debuting at No. 14. The holiday album later sold over 110,000 copies in the United States. In late 2007, the album was reissued with three more Christmas-themed selections. 2007–2008: Insomniatic The duo's third studio album, Insomniatic, was released on July 10, 2007. The album features a more electropop, electronic rock and dance-pop influenced sound different from their debut, with the use of synthesizers, synth-rock guitars, vocoder and electronic instruments. The album peaked at No. 15 on the Billboard 200, selling over 39,000 copies in its first week alone, and becoming Aly & AJ's highest debut to date. The album sold