Kiesza's red-hot "Hideaway" advances into the Top 40 on the pop radio airplay chart. Meghan Trainor's "Bass" begins making a run.

Validating Tuesday’s projection, Kiesza’s breakthrough single “Hideaway” has officially climbed into the top 40 on Mediabase’s rolling pop radio airplay chart.

The song, which has garnered support from many of America’s largest and most influential pop stations, appears at #39 on the strength of 970 pop spins over the seven days ending July 8.

That total represents a sizable gain of 464 from the previous seven day period.

Seemingly destined for an impressive run at the format, “Hideaway” should overtake Michael Jackson and Justin Timberlake’s declining “Love Never Felt So Good” to claim the #38 spot on Thursday’s airplay chart.

– Meghan Trainor’s buzzworthy “All About that Bass,” which impacted alongside “Hideaway” and has reigned as one of pop’s ten most-added songs for two consecutive weeks, is beginning to make its own run towards the Top 40.

With 388 spins over the seven days ending July 8, “Bass” ranks as the format’s 49th-most-played song. Its week-over-week gain of 262 spins, meanwhile, is the largest of any song ranked between 41 and 50.

Considering that list includes buzzworthy or high-profile tracks like Tinashe’s #43 “2 On (featuring Schoolboy Q)” (+112), Tove Lo’s #44 “Habits (Stay High)” (+112) and Coldplay’s #46 “A Sky Full of Stars” (+207), the song’s current growth rate is very encouraging.

“All About that Bass” will, however, need to make up considerable ground to even advance to #48, let alone the Top 40. Capital Cities’ “One Minute More,” the #48 song, earned 680 pop spins over the past seven days. Ingrid Michaelson’s “Girls Chase Boys,” the #40 track, net 923.

The song is currently #28 on iTunes’ Single Sales chart.

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