Alfred Matthew Yankovic (/ˈjæŋkəvɪk/ YANG-kə-vik; born October 23, 1959), better known by his stage name "Weird Al" Yankovic, is an American singer-songwriter, musician, parodist, record producer, satirist, actor, music video director, film producer, and author. He is known for his humorous songs that make light of popular culture and often parody specific songs by contemporary musical acts, original songs that are style pastiches of the work of other acts, and polka medleys of several popular songs, featuring his favored instrument the accordion.

Since his first-aired comedy song in 1976, he has sold more than 12 million albums (as of 2007), recorded more than 150 parody and original songs, and has performed more than 1,000 live shows. His works have earned him three Grammy Awards and a further 11 nominations, four gold records, and six platinum records in the United States. Yankovic's first top ten Billboard album (Straight Outta Lynwood) and single ("White & Nerdy") were both released in 2006, nearly three decades into his career. His latest album, Mandatory Fun (2014), became his first number one album on its debut week.