List of Billboard Hot 100 number ones of 1985

The two longest running number-one singles of 1985 are "We Are the World" by USA for Africa and "Say You, Say Me" by Lionel Richie which each logged four weeks at number-one.

"Like a Virgin" by Madonna concluded a six-week run that started in 1984.

That year, 17 acts first hit number one, such as Foreigner, USA for Africa, Simple Minds, Tears for Fears, Bryan Adams, Paul Young, Huey Lewis and the News, John Parr, Dire Straits, Ready for the World, a-ha, Whitney Houston, Jan Hammer, Starship, Marilyn Martin, and Mr. Mister.

Madonna, Wham!, Phil Collins, and Tears for Fears were the only acts to have more than one song reach number one, with Phil Collins having the most with three, while the others have two.

This was also a record year for British acts with 13 hits reaching the top spot.

Cyndi Lauper , studio badge, and the sweatshirt given to all attendees at A&M Studios in Hollywood , California on January 28, 1985, during the recording of " We Are the World ".