unless they hit number one as a solo artist. Artists who hit number one prior to the start of the Hot 100 are included here. A song that topped multiple pre-Hot 100 charts is counted only once towards the artist's total. The ° symbol indicates that all or part of an artist's total includes number-ones occurring on any of the pre-Hot 100 chart(s) listed above (January 1, 1955 through July 28, 1958). 0-9 112 (1) 21 Savage (2) 24kGoldn (1) 50 Cent (4) 6ix9ine (1) 98 Degrees (1) A B C D E F G H I Billy Idol (1) Enrique Iglesias (2) James Ingram (2) INXS (1) J K L M N O P Q Quavo (1) Queen (2) Question Mark & the Mysterians (1) R S T U–V W X–Z See also List of number-one hits (United States) List of best-selling music artists List of artists who reached number one on the UK Singles Chart List of Billboard Hot 100 number-ones by British artists References External links Fred Bronson's Billboard Book of Number 1 Hits, 5th Edition () Joel Whitburn's Top Pop Singles 1955-2008, 12 Edition () Joel Whitburn Presents the Billboard Pop Charts, 1955-1959 () Joel Whitburn Presents the Billboard Hot 100 Charts: The Sixties () Joel Whitburn Presents the Billboard Hot 100 Charts: The Seventies () Joel Whitburn Presents the Billboard Hot 100 Charts: The Eighties () Joel Whitburn Presents the Billboard Hot 100 Charts: The Nineties () Additional information obtained can be verified within Billboard's online archive services and print editions of the magazine.