Ebony and Ivory McCartney filmed a promotional interview for the "Tug of War" album. The b-side of the single, the song "Rainclouds", is written by Paul McCartney and Denny Laine, though on early pressings of the single the song was credited only to McCartney. "Ebony and Ivory" spent seven weeks at No. 1 on the "Billboard" Hot 100, and was the fourth-biggest hit of 1982. For McCartney, the song's run atop the chart was the longest of any of his post-Beatles works, and second longest career-wise (behind "Hey Jude" with The Beatles); for Wonder, it was his longest-running chart-topper. It marked the first
Stevie Wonder platinum-selling single album, and its single "Happy Birthday" was a successful vehicle for his campaign to establish Dr. Martin Luther King's birthday as a national holiday. The album also included "Master Blaster (Jammin')", "I Ain't Gonna Stand for It", and the sentimental ballad, "Lately". In 1982, Wonder released a retrospective of his 1970s work with "Stevie Wonder's Original Musiquarium", which included four new songs: the ten-minute funk classic "Do I Do" (which featured Dizzy Gillespie), "That Girl" (one of the year's biggest singles to chart on the R&B side), "Front Line", a narrative about a soldier in the Vietnam War