December means recapping everything amazing that happened over the last year. What we like to do at Bandsintown is check out all of the interesting data about touring artists and their fans from the last year. Based on what we found, 2015 was an interesting time for musicians. Check out some of the most interesting facts below!

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The concert that saw the most RSVPs this year was System of a Down at at Anhembi Arena in Sao Paulo on September 25. System of a Down also performed the second and third largest concerts of the year at The Forum in Los Angeles on April 6 and at Sports Palace in Mexico City on October 6. The runner-up concerts came from popstar Lana Del Rey, whose concert at Hollywood Bowl on May 18 clocked in as the fourth most RSVPd-to concert of the year. This concert was followed by three more Lana Del Rey shows: Dallas at Gexa Energy Pavilion on May 19, at Tinley Park at Hollywood Casino Amphitheatre on May 30, and at Shoreline Amphitheatre in Mountain View on May 20.

Whether or not you've yet had a chance to catch The Accidentals live in concert, it's looking like most of the world already has. This acoustic folk band performed a total of 218 concerts last year. If 2016 is looking like 2015 for this band, you might want to Track them to see when, not if, they'll be coming to your city. They are not to be missed! Just behind The Accidentals was alt-country band American Aquarium, who played 216 concerts in 2015.

As for the artists with the most RSVPs of 2015, no one could beat pop punk staple, All Time Low. The "Backseat Serenade" musicians saw a total of 54,344 RSVPs in all last year, which is an interesting fact. There were some popstars on Bandsintown who have almost twice as many Trackers as All Time Low, but who saw less than 54,344 RSVPs for the entire year.

It probably comes at no surprise that New Jersey hip-hop artist Fetty Wap saw the highest Tracker growth out of any other artist on Bandsintown this year. This time last year, a lot of people had probably never even heard about the "679" musician. At the start of 2015, Fetty Wap had 152 Trackers. Ending this year, he has 232,699—that is huge.