- twitter.com nysweepsThe Harmony Sweepstakes A Cappella Festival is the premier American showcase for vocal harmony music.
- twitter.com RMHarmonySweepsHarmony Sweepstakes A Cappella Festival 2pm this Sunday at Colo.
- twitter.com hashtag/nysweeps…All the results from last night's coast-to-coast Harmony Sweepstakes are up now.
- twitter.com capitalblendCheck out the link for more information and to purchase tickets!
- twitter.com halfwayto12amWarning: we'll spontaneously break into harmony upon hearing an awesome tune.
- twitter.com acappellaSFSponsored by the Harmony Sweepstakes A Cappella Festival.