Complex sentence: It did not chart in the US at first, however his fourth release, "The Pied Piper", became forever known as his signature song, and it became a Top 10 hit on both sides of the Atlantic.
Split into simpler sentences: It did not chart in the U.S. at first, however his fourth release, "The Pied Piper", became forever known as his signature song. St. Peters returned stronger than ever with "The Pied Piper", a Top 10 hit on both sides of the Atlantic.