The Digital Songs or Digital Song Sales chart ranks the best-selling digital songs in the United States, as compiled by Nielsen SoundScan and published by Billboard magazine. Although it originally started tracking song sales the week of October 30, 2004, it officially debuted in the issue dated January 22, 2005, and merged all versions of a song sold from digital music distributors. Its data was incorporated in the Hot 100 three weeks later. Since October 2004, digital sales have been incorporated into many of Billboard's music singles charts. The decision was based on the dramatic increase of the digital market while commercial single sales in a physical format were becoming negligible.
The Radio Songs chart is released weekly by Billboard magazine and measures the airplay of songs being played on radio stations throughout the United States across all musical genres. It is one of the three components, along with sales and streaming activity, that determine the chart positions of songs on the Billboard Hot 100.
The Canadian Hot 100 is a music industry record chart in Canada for songs, published weekly by Billboard magazine. The Canadian Hot 100 was launched on the issue dated March 31, 2007, and is currently the standard record chart in Canada; a new chart is compiled and officially released to the public by Billboard on Tuesdays but post-dated to the following Saturday.
American singer Katy Perry has released six studio albums, seven extended plays (EP), 39 singles, and 11 promotional singles. She is referred as the "Queen of Pop" of her time. According to Recording Industry Association of America, Perry has sold 109.5 million digital singles and 17 million albums in the United States. She is also the sixth best-selling digital singles artist in the United States. Throughout her career, Perry has sold 48 million album units and 135 million singles worldwide, making her one of the best-selling music artists of all time. Billboard listed her as the fourth top female artist of the 2010s decade and the 61st greatest artist of all time. Perry has scored nine number one songs on Billboard Hot 100 and three number one albums on Billboard 200.
"Flashing Lights" is a song by Australian DJ and recording artist Havana Brown for her first studio album of the same name (2013). The recording was written by Brown, Nadir Khayat, John Mamann, Jean Claude Sindres, Yohanne Simon and Teddy Sky and produced by RedOne. It was released as the album's lead single on 23 August 2013 by Island Records Australia as a digital download. Official remixes were digitally released on 13 September 2013. The theme of the "Flashing Lights" is about a toxic relationship.
"Brave" is a song by American singer-songwriter Sara Bareilles, taken from her fourth studio album, The Blessed Unrest (2013). The song was written by Bareilles and Jack Antonoff from the band fun., as the singer was inspired from the struggles that a close friend dealt with in regard to coming out as gay. Bareilles requested Mark Endert to produce it with the explicit goal of radio airplay. "Brave" was released worldwide through digital download on April 23, 2013, as the lead single from the album, through Epic Records.
"Roar" is a song by American singer Katy Perry. It was released on August 10, 2013, by Capitol Records as the lead single from her fourth studio album, Prism (2013). Perry co-wrote the song with Bonnie McKee and its producers Dr. Luke, Max Martin, and Cirkut. It is a power pop song containing elements of arena rock and lyrics centering on standing up for oneself and self-empowerment.
