Robinson achieved his goal, the song, "My Girl", was recorded in November 1964 and released a month later. It became the group's first number-one single in 1965. "My Girl" subsequently became the Temptations' signature song, and elevated Ruffin to the role of lead singer and frontman. The follow-ups to "My Girl" were also extremely successful singles, and included the Ruffin-led hits "It's Growing" (1965), "Since I Lost My Baby" (1965), "My Baby" (1965), "Ain't Too Proud to Beg" (1966), "Beauty Is Only Skin Deep" (1966), "(I Know) I'm Losing You" (1966), "All I Need" (1967), "(Loneliness Made Me Realize) It's You That I Need" (1967), "I Wish It Would Rain" (1967), and "I Could Never Love Another (After Loving You)" (1968). Ruffin also shared lead vocals on the 1967 hit single "You're My Everything" with Eddie Kendricks. The tall, 6'3", Ruffin's passionate and dramatic performances endeared him to the Temptations' audiences and fans. According to Otis Williams, Ruffin (playfully nicknamed "Ruff" by the group) was a natural comedian and a hard-working singer when he first joined the group. Ruffin's most notable non-vocal contribution to the Temptations was the masterminding of their trademark four-headed microphone stand. This enabled the other members to sing and do their dances without having to crowd around one microphone while the lead singer would sing into a separate microphone. By 1967, however, difficulties with Ruffin became an issue for the group. He became addicted to cocaine and began missing rehearsals and performances. Refusing to travel with the other Temptations, Ruffin and his then girlfriend, Tammi Terrell, traveled in a custom limo (with the image of his trademark black rimmed glasses painted on the door). After the Supremes had their name changed to Diana Ross & the Supremes in early 1967, Ruffin felt that he should become the focal point of the Temptations, just as Diana Ross was for her group, and began demanding that the group name be changed to David Ruffin & the Temptations. This led to a number of disagreements between Ruffin and the group's de facto leader, Otis Williams. In addition to the group's problems with Ruffin's ego, he began inquiring into the Temptations' financial records, demanding an accounting of the group's money. This caused friction between Ruffin and Gordy. In June 1968, the Temptations agreed that Ruffin had finally crossed the line when he missed a June 22 Cleveland, Ohio, date with