It may take weeks to determine prince's cause of death and officials announced it is not suspicious.
PHOTOS: Prince through the years
The 57-year-old had the flu recently, a case so severe, his plane made an unexpected landing last week.
Many fans saw Prince perform at the Paramount Theatre in Oakland in what was one of his last concerts.
Prince fan Darin Brown was one of the first customers inside Berkeley's Amoeba Music this morning. He's been following "his purpleness" since his 1978 debut album.
WATCH VIDEO: Legendary pop musician Prince dies at 57
"You didn't know if it was rock and roll, or R&B. He combined all music into his music," Brown said.
Morty Okin leads a Prince tribute band called The Purple Ones. He was amazed by the artist's ability to play numerous instruments.
"We lost a living legend," Okin said. "From age 16 to 17-years-old bass, drums, guitar, keyboard. What? Who does that."
Prince played Oakland numerous times over the years, including just last month when he also took in a Warriors game sitting next to owner Joe Lacob.
Chris and Alva Valle of Fremont are huge fans. He even called off some meetings at work to stay home and mourn.
RELATED: Celebrities, musicians react to the death of Prince
SF music community and DJs shocked and saddened by Prince's passing. Many saw him perform, some in intimate venues. pic.twitter.com/wAz7ietGCu— Vic Lee (@vicleeabc7) April 21, 2016
"My first emotion was I cried because I really am a true Prince fan and have been for a very long tim," said Prince fan Alva Valle.
"I think like everyone we were shocked and devastated, especially after just seeing him in early March," said Chris Valle, a Prince fan.
The Valle's say he looked frail but the March concert had all the intensity you would expect. If you were wondering how to honor the man who stayed musically relevant for nearly four decades, here's some advice.
"Get out and listen to prince," Valle said.
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