Original sentence: The group had already recorded a handful of singles when they hit the number one spot in the United States with the song "He's So Fine" (what some called the same distinctive riff later appearing in George Harrison's "My Sweet Lord", prompting a copyright infringement claim)
Edited sentence: The group had already recorded a handful of singles when they hit the number one spot in the United States with the song "He's So Fine" (the distinctive riff later appearing in George Harrison's "My Sweet Lord", prompting a copyright infringement claim)