"Just My Imagination (Running Away with Me)" is a song by American soul group The Temptations. Released on the Gordy (Motown) label, and produced by Norman Whitfield, it features on the group's 1971 album, Sky's the Limit. When released as a single, "Just My Imagination" became the third Temptations song to reach number one on the US Billboard Hot 100. The single held the number one position on the Billboard Pop Singles Chart for two weeks in 1971, from March 27 to April 10. "Just My Imagination" also held the number-one spot on the Billboard R&B Singles chart for three weeks, from February 27 to March 20 of that year.

Answer this question based on the passage: who sings just my imagination running away with me? Let's have some stream of consciousness first.
The relevant information is: "Just My Imagination (Running Away with Me)" is a song by American soul group The Temptations. So, the answer is American soul group The Temptations.