The song "Masterpiece" is by this American singer and songwriter who is  widely cited as an influence by other artists and often referred to as what?
Madonna (entertainer) Madonna Louise Ciccone ( ; born August 16, 1958) is an American singer, songwriter, actress, and businesswoman. A leading presence during the emergence of MTV in the 1980s, Madonna is known for pushing the boundaries of lyrical content in mainstream popular music, as well as visual imagery in music videos and on stage. She has also frequently reinvented both her music and image while maintaining autonomy within the recording industry. Besides sparking controversy, her works have been acclaimed by music critics. Referred to as the "Queen of Pop", Madonna is widely cited as an influence by other artists.
Bertie Higgins Elbert Joseph Higgins (born December 8, 1944), known as Bertie Higgins, is an American singer-songwriter. In 1982, Higgins had a Top 40 album with "Just Another Day in Paradise". It spawned the #1 Billboard romantic classic ballad "Key Largo", which referenced the Humphrey Bogart movie of the same name and reached #8 in the U.S. "Billboard" Hot 100 record chart and #1 in the Billboard adult contemporary charts and #50 in the Billboard Country Music charts. In 2009, the song "Key Largo" was #75 on VH1's Greatest One-Hit Wonders of the 80s.