EUSTIS, Fla. — Rob Grill, the lead singer of the 1960s rock band The Grass Roots and famous for such hits as “Sooner or Later” and “Temptation Eyes,” died Monday at a hospice facility while listening to one of his favorite songs, according to his wife, Nancy Grill. He was 67.

“My dear husband Robert Frank Grill, 67, of Mt Dora, Fl passed away peacefully in my arms at 11:37 a.m. (EST), while listening to one of his favorite songs … ‘Let’s Live for Today.’ He loved his fans and he loved The Grass Roots! Thank you for all of your prayers, love and support during this time” Nancy Grill wrote on a music-lovers website.

Grill had recently suffered from a head injury after falling and was in a coma, according to reports. He also suffered from other health problems, including a recent stroke.

Raised in Hollywood, Calif., Grill’s music career started while working at a studio with friends Cory Wells and John Kay, who would go on to form Three Dog Night and Steppenwolf. Grill then joined the Grass Roots and the band had their first Top 10 hit in 1967 with “Let’s Live for Today.”

The next year, the band had their biggest hit with “Midnight Confessions,” with Grill on co-lead vocals. That song peaked at No. 5 on the Billboard Hot 100. The band eventually had 29 best-selling singles including 13 of which went gold.

In 2007, Grill agreed to enroll in a pre-trial intervention program in Lake County following his arrest at his Mount Dora home for trying to obtain the same prescription medicine from different doctors.