What was Paul McCartney and Wings first US number-one single?

Paul McCartney and Wings (also known by their original name Wings) were a British-American rock band formed in 1971 by former Beatle Paul McCartney, his wife Linda McCartney on keyboards, session drummer Denny Seiwell, and former Moody Blues guitarist Denny Laine. Wings were noted for frequent personnel changes along with their commercial successes, going through three lead guitarists and four drummers. However, the core trio of the McCartneys and Laine remained intact throughout the group's existence.

In 1973 "Paul McCartney and Wings" released the album "Red Rose Speedway", which yielded their first US number-one hit, "My Love".

"My Love" was written by Paul McCartney as a love song to his wife and Wings bandmate Linda. The single marked the first time that McCartney's name appeared in the artist credit for a Wings record, after their previous releases had been credited to Wings alone. Released on 23 March 1973, the song topped the 'Billboard' Hot 100 chart in the US for four weeks and peaked at number 9 on the UK Singles Chart. The single was viewed as Wings' first significant success in the US and helped "Red Rose Speedway" achieve commercial success.