The Intruders signed with the Gamle label in 1966 and achieved instant success with the Top 20 R & B hit ”(We'll Be) United'.

One year later, they charted again with the song ”Together“, taken from the album 'The Intruders Are Together'.  By 1968, the group achieved their first major crossover hit with the Gamble & Huff composition ”Cowboys To Girls“, hitting the pop charts at number six.

This success was followed up by another Top 40 hit entitled ”(Love Is Like A) Baseball Game“.

At the start of the Seventies, the group had some internal conflicts that led to a reshuffle and ”Little Sonny‘“ Brown was replaced by Bobby Starr for their 1970 album ”When We Get Married“.

The hits began to follow, including ”(Win Place Or Show) She's A Winner“, ”I'll Always Love My Mama‘“and ”I Wanna Know Your Name“

By 1975, the group had been signed to the Philadelphia International label.