Brian Patrick Wilson, nicknamed "the Beard" and "B-Weezy", is an American former professional baseball relief pitcher. He played in Major League Baseball (MLB) for the San Francisco Giants and Los Angeles Dodgers. He stands 6 feet 1 inch (1.85 m) tall and weighs 205 pounds (93 kg). Wilson is known for his large black beard, which he began growing during the 2010 pennant race. Wilson's entrance at home games accompanied by the song "Jump Around" was popular with fans. Wilson also portrayed Peterson, a pitcher in the 2019 film Bottom of the 9th.

"Jump Around" is a song by American hip hop group House of Pain, produced by DJ Muggs of Cypress Hill, who has also covered the song, and was released in May 1992 by Tommy Boy and XL as the first single from their debut album, House of Pain (1992). The song became a hit, reaching number three in the United States. A 1993 re-release of the song in the United Kingdom, where the initial release had been a minor hit, peaked at number eight.