Even if some songs were among the biggest hits of 2014, that doesn't mean pop music fans know them immediately by name. This week, music identifying app Shazam released its annual list of the most tagged songs and artists of the year, featuring tracks from the likes of John Legend, Meghan Trainor, Sam Smith and more.

In the United States, Legend's lovelorn No. 1 hit "All of Me" was the most tagged song of the year, USA Today reports. Other hits included in the known but unknown Shazam categories in the U.S. went to largely new artists, with Disclosure's "Latch," Trainor's "All About That Bass," Clean Bandit's "Rather Be" and MAGIC!'s "Rude" all making it into the top 10.

The most Shazamed artists in the country list, however, was full of familiar names. Katy Perry, Ed Sheeran, Lorde and Legend (once again) made up the top 10, with Legend clocking in at No. 1.

On an international scale, hits that have yet to really flood in the U.S. from emerging artists made the list. Clean Bandit's "Rather Be" was the most tagged song worldwide, followed by singles from Robin Schulz, Mr. Probz and Milky Chance hitting the top 10.

Most Shazamed Songs in the U.S.:
01. John Legend, "All of Me"
02. Disclosure, feat. Sam Smith, "Latch"
03. MAGIC!, "Rude"
04. Nico & Vinz, "Am I Wrong"
05. Clean Bandit, feat. Jess Glyne, "Rather Be"
06. Meghan Trainor, "All About That Bass"
07. Katy Perry, feat. Juicy J, "Dark Horse"
08. Sam Smith, "Stay With Me"
09. Jeremih, feat. YG, "Don't Tell 'Em"
10. Pharrell Williams, "Happy"

Most Shazamed Songs Worldwide:
01. Clean Bandit, "Rather Be"
02. John Legend, "All of Me"
03. Lilly Wood & The Prick and Robin Schulz, "Prayer in C"
04. Mr. Probz, "Waves"
05. Nico & Vinz, "Am I Wrong"
06. MAGIC!, "Rude"
07. Katy Perry, feat. Juicy J, "Dark Horse"
08. Pharrell Williams, "Happy"
09. Milky Chance, "Stolen Dance"
10. Kiesza, "Hideaway"

Most Shazamed Artists in the U.S.:
01. John Legend
02. Katy Perry
03. Ed Sheeran
04. Iggy Azalea
05. Lorde
06. OneRepublic
07. Disclosure
08. MAGIC!
09. Jason DeRulo
10. Nico & Vinz

Most Shazamed Artists Worldwide:
01. Avicii
02. David Guetta
03. Ed Sheeran
04. Katy Perry
05. Jason DeRulo
06. Clean Bandit
07. OneRepublic
08. John Legend
09. Calvin Harris
10. Pharrell Williams

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