By Dave Karger
Updated October 31, 2011 at 12:00 PM EDT


Tonight’s episode of The Sing-Off begins, appropriately, with a Halloween-themed performance of freaky songs (Danny Elfman’s “This Is Halloween,” Warren Zevon’s “Werevolves of London,” and Ray Parker Jr.’s “Ghostbusters”; click the link above to see it now). Afterwards, the top seven groups will each perform a medley of three hits by a pop music icon. Here are the tunes the talented singers will tackle:

Urban Method: Rihanna’s “What’s My Name,” “Umbrella,” and “Only Girl (In the World)”

Vocal Point: Elvis Presley’s “Don’t Be Cruel,” “Can’t Help Falling in Love,” and “Jailhouse Rock”

Afro-Blue: Janet Jackson’s “What Have You Done For Me Lately,” “When I Think of You,” and “Miss You Much

Dartmouth Aires: Queen’s “Killer Queen,” “Bohemian Rhapsody,” and “Somebody to Love”

Pentatonix: Britney Spears’ “Oops…I Did It Again,” “Toxic,” and “Hold It Against Me”

Delilah: Alicia Keys’ “Fallin’,” “A Woman’s Worth,” and “If I Ain’t Got You”

Yellowjackets: Billy Joel’s “The River of Dreams,” “She’s Always A Woman,” and “Uptown Girl”

The installment also includes a bonus performance by last season’s winning group, Committed, who take on Chris Brown’s “Forever,” “With You,” and “Yeah (3x).” I had a chance to check out this episode in advance, and was particularly impressed with Pentatonix’s Britney mash-up as well as the Dartmouth Aires’ jaw-dropping take on the operatic passage from “Bohemian Rhapsody.” The Sing-Off airs on NBC at 8/7 central.

Dave on Twitter: @davekarger