Perhaps the most familiar debut is that of hip-hop artist Big K.R.I.T.. Debuting at No. 15, the Mississippi rapper's two most recent mixtapes, released for free online, have garnered positive reviews from Pitchfork, XXL, and Vibe. He charts on Uncharted with more than 8,500 new Twitter followers, 5,400 new Facebook fans, and nearly 80,000 song plays on Last.fm.
Your Favorite Enemies comes in at No. 11, climbing five places from last week. The Montreal-based sextet has been doing their part in organizing efforts for victims of the March 11 earthquake in Japan by launching, in partnership with the Red Cross, an initiative called the Hope Project, which will deliver fans' postcards of empathy and encouragement to survivors of the catastrophe and will culminate with a benefit concert in Tokyo on May 25. The band also has a China tour lined up for the month leading up to the benefit.
Another newbie to Uncharted is "grindie" (a term referring to the combination of the grime and indie genres) band Hadouken!, who enter the ranking at No. 45. The Leeds, UK quintet, named for a special attack in the video game Street Fighter, racked up more than 75,000 Last.fm song plays and 1,400 Facebook fans during the chart week and launch a festival tour this spring.
Finally, Uncharted sends off progressive metal band Obscura in style, as the German quartet makes its debut on this week's Heatseekers chart at No. 11. Released March 29, Obscura's new album Omnivium is their third full-length release. Obscura kicks off their European tour April 29 in Wurzburg, Germany.
To discover new music and get a head start on following the careers of these emerging artists, find the rest of this week's chart on Billboard.com or in Billboard Magazine, and check in with Uncharted Territory every week for more.