After moving to New York City to pursue a modeling career, Cassie met producer Ryan Leslie in 2004. They started recording music together in the following year, with Leslie eventually writing and producing her entire self-titled debut album
Cassie, released on August 8, 2006, through his
NextSelection imprint in partnership with
Diddy's
Bad Boy Records, and distributed by
Atlantic Records. It was preceded by the Platinum single "
Me & U," which peaked in the top ten of several countries, including number three on the US
Billboard Hot 100 and spent seven weeks atop the
US Airplay chart. In 2007, it was revealed Cassie was back in the studio working on her sophomore album, with Leslie listed again as one of her collaborators. It was also announced she had been cast on the sequel to the 2006 American dance film
Step Up from
Touchstone Pictures as Sophie Donovan, portrayed as a "
triple threat, and supposed to be an intimidating character towards [the lead]
Andie." Cassie didn't plan being featured on the soundtrack, initially wanting to separate her music career from the acting, but when approached for song submissions, she recalled during an appearance on
MTV's
Total Request Live to promote
Step Up 2, she had been recording in Los Angeles before shooting the movie, and came up with "Is It You." "[It] is one of the most fun songs I've done, it's very pop, very different from what I'm normally doing. But, it's raw at the same time, and fits the movie perfectly," she elaborated. The track became digitally available on November 13, 2007, with a
CD single released on May 13, 2008. ==Critical reception==