Billboard Year-End Hot 100 singles of 2015
The Billboard Hot 100 is a chart that ranks the best-performing singles of the United States. Its data, published by Billboard magazine and compiled by Nielsen SoundScan, is based collectively on each single's weekly physical and digital sales, as well as airplay and streaming. At the end of a year, Billboard will publish an annual list of the 100 most successful songs throughout that year on the Hot 100 chart based on the information. For 2015, the list was published on December 9, calculated with data from December 6, 2014, to November 28, 2015.
The funk track "Uptown Funk" by British producer Mark Ronson, featuring American singer Bruno Mars, who co-wrote and voiced the lyrics was named the number 1 song of 2015, despite being released in late 2014. It spent the longest time at number 1 for the year, 14 weeks, and spent the entire year in the Top 40 region. This is also the joint-fifth longest time at number 1 for a single in the history of the Hot 100 post-1958 inception, after Lil Nas X and Billy Ray Cyrus's "Old Town Road", Mariah Carey and Boyz II Men's "One Sweet Day" and Luis Fonsi, Daddy Yankee and Justin Bieber's "Despacito", and Harry Styles' "As It Was".
"Uptown Funk" by Mark Ronson featuring Bruno Mars came in at number one, spending a total of fourteen consecutive weeks at the top position of the Billboard Hot 100 during 2015.
Four songs from The Weeknd appear on the list, with "Earned It" at number 9, "The Hills" at number 10, "Can't Feel My Face" at number 12, and "Love Me Harder" at number 56.
Drake has six songs on the list, the most of any artist. His highest-ranking single on the list is "Hotline Bling" at number 30.
The first five singles from Taylor Swift's fifth studio album, 1989, are on the list. Four were in the top 30, of which "Blank Space" ranked the highest, at number 7.
"Cool for the Summer" is a song by American singer Demi Lovato. It was released as the lead single from her fifth studio album Confident (2015) on July 1, 2015, by Hollywood Records and Island Records, and premiered on radio on the same date via Republic Records. Lovato co-wrote "Cool for the Summer" with Alexander Erik Kronlund, Savan Kotecha, and its producers Max Martin and Ali Payami. It is a pop and pop rock song with an electronic instrumental arrangement, a synthesized beat and an electric-guitar riff during the chorus.
Cool for the Summer
A screenshot from the music video, showing Lovato wearing black latex and boots. In a scenery which Joe Lynch from Billboard described as a "neon-drenched ode to summer fun—with an emphasis on what happens after dark".