iHeartRadio users really heart Taylor Swift.
The 1989 singer was iHeartRadio's leading artist in 2015 in terms of stations created by users, according to data from the radio giant. Swift was the top artist nearly nationwide, dominating the list across 48 states, save for Missouri and Louisiana.
The data is part of iHeartRadio's 2015 roundup, which included a bevy of fun statistics.
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The rise of R&B
R&B was the top-ranking genre overall by iHeartRadio users, likely thanks to artists like the Weeknd, who recently released his hit album Beauty Behind the Madness. Rounding out the top five are pop, rap, country and Latin music.
Most liked track
Ed Sheeran's love song "Thinking Out Loud" was the year's most "thumbed," or "liked," track of the year. He beat out three Taylor Swift songs in the process, as well as another one of his own.
Drake's meme-ready "Hotline Bling" was also a close favorite, only hampered by the fact that it came out much later than Sheeran and Swift's tracks. It was still the top liked song across 20 states.
Ridiculously popular songs
Users who created different stations based on popular songs heavily gravitated toward "Uptown Funk" by Mark Ronson and Bruno Mars. The song was released in 2014, but was still massively popular well into this year.
When narrowing things down on a state-by-state basis, iHeartRadio also found that Fetty Wap's rap hit "Trap Queen" and Wiz Khalifa's sentimental "See You Again," featuring Charlie Puth, were also top picks.