Shazam

TAG, THEY'RE IT: Grand Hustle/Def Jam's Iggy Azalea's "Black Widow" (feat. Rita Ora) and Miranda Lambert & Carrie Underwood's country collab track, "Somethin' Bad," top the biggest jumpers on Shazam's USA Top 100 Tag Chart; another big jumper: breakout duo Rae Sremmurd, who earned the attention of producers P-Nasty and Mike WiLL Made-It after appearing on a segment of BET's 106th & Park. Meanwhile, Sam Smith‘s vocals continue to adorn two of Top 5 most-tagged for yet another week, as Pharrell holds onto fifth. Check out the whole chart (sortable by rank, artist and jump) here. On the U.K. side, Ed Sheeran has the highest debut and Foster the People is the biggest jumper. Speaking of the land of tea and crumpets, Island's Kiesza, who ruled the U.K. chart for multiple weeks, is now one of the Top 10 biggest gainers stateside; fancy that. For a full look at what British folk are pointing their mobiles at, click here. (7/1p)