WATCH: Bono, Scarlett Johansson, Barry Manilow and Jimmy Kimmel Fight AIDS

Jimmy Kimmel Live! devoted the entire hour of his late night TV show on World AIDS Day to the launch of (SHOPATHON) RED, a month-long fundraiser for The Global Fund to fight AIDS. Every dollar raised will be matched by the Bill and Melinda Gates Foundation.

Celebrities like Bono, Snoop Dogg, The Weeknd, and Meryl Streep signed-up to participate in the fundraiser that is co-produced by VICE Media. You can donate to the cause at the online giving site Omaze for a chance to win several prizes, including a trip to the Game of Thrones set. Other retailers like Starbucks, Gilt and the Gap are also taking part, as well as car service app Uber and video game maker Supercell, the maker of popular games like Clash of Clans.

Bono, who also appeared on the program Tuesday night, co-created RED with Bobby Shriver in 2006 to make it easier for people and businesses to join the fight against HIV.

A skit on Kimmel's show featuring Scarlett Johansson and Barry Manilow is all the rage online. Watch below as the trio set up a new jingle for (SHOPATHON) RED - including some comedic missteps along the way.