Bubbling Under: 'Glee' Star Naya Rivera Graduates To First Solo Hit

Each Friday, Billboard presents "Bubbling Under," a weekly look at new and noteworthy acts making their way toward Billboard chart success. Up this week: Naya Rivera, Dan + Shay, J Roddy Walston and the Business and Sabina Ddumba

Actress/singer Naya Rivera scores her first Billboard airplay chart appearance, as "Sorry" (Columbia) debuts at No. 37 on Rhythmic. Enlisting her fiancé, rapper Big Sean, for the song's feature, Rivera boasts how not sorry she is for landing her man. Rivera is best known for her role as Santana Lopez on Fox's "Glee" but has been working on her debut album for more than two years. Tricky Stewart has been at the production helm of the set. (With the "Glee" cast, Rivera sings lead on the troupe's cover of the Band Perry's "If I Die Young," which debuts at No. 38 this week on Pop Digital Songs. It sold 17,000 downloads, according to Nielsen SoundScan.)

Singer/songwriters Dan + Shay (Dan Smyers and Shay Mooney) snare the Hot Shot Debut at No. 55 on the Nielsen BDS-based Country Airplay chart with their first single, "19 You + Me," the lead track from the twosome's Warner Bros. debut album, due early next year. The set was co-produced by Smyers, Mooney and Scott Hendricks, while Dan + Shay penned "19" along with co-songwriter Danny Orton. Smyers is a native of Pennsylvania and Mooney hails from Arkansas.

While J Roddy Walston and the Business formed in 2002, the last month has brought the band its first chart visits. The group's ATO/RED debut "Essential Tremors" entered Heatseekers Albums at No. 5 four weeks ago. This week, lead single "Heavy Bells" marks the act's airplay chart bow, as it starts on Alternative Songs at No. 40. WZNE Rochester, N.Y., led with 24 plays last week.

You may not know the name Sabina Ddumba, but if you've listened to Katy Perry's "Walking on Air" (which entered the Billboard Hot 100 at No. 34 last week) you've heard her soulful voice. She provides the wailing diva vocals that open the track, which is Perry's tribute to '90s dance music (and appears on her new Capitol album "PRISM"). The 19-year-old Ddumba was born and raised in Stockholm, started singing at age 6 and has performed with the Tensta Gospel Choir. She's currently working on her own solo album.
Reporting by Keith Caulfield, Wade Jessen, Rauly Ramirez and Gary Trust of the Billboard charts department