Christina Aguilera & Demi Lovato’s “Fall In Line,” Clean Bandit & Demi’s “Solo” Debut On Bubbling Under Hot 100

Two Demi Lovato collaborations earn spots on this week’s Bubbling Under Hot 100.

Christina Aguilera / Demi Lovato at the BBMAs | Todd Williamson/NBC

Christina Aguilera’s “Fall In Line” and Clean Bandit’s “Solo” both feature Demi Lovato.

Both also debut on this week’s edition of the Bubbling Under Hot 100.

“Fall In Line” starts at #1 on this week’s edition of the chart, while “Solo” grabs #7.

The Bubbling Under Hot 100 ranks the Top 25 songs that have yet to appear on the actual Hot 100.

Like the main chart, it determines positions based on combined activity from sales, streams and radio airplay.

Both songs generated ample activity on the sales front. “Fall In Line” improves to #17 on this week’s Digital Song Sales chart (after debuting at #39 last week), while “Solo” grabs #33.

Brian Cantor

Brian Cantor is the editor-in-chief for Headline Planet. He has been a leading reporter in the music, movie, television and sporting spaces since 2002. Brian's reporting has been cited by major websites like BuzzFeed, Billboard, the New Yorker and The Fader -- and shared by celebrities like Taylor Swift, Justin Bieber and Nicki Minaj. Contact Brian at brian.cantor[at]headlineplanet.com.