Bruno Mars' Friends, Fans Offer Condolences After Mother's Death

'I'm sincerely praying for you bro,' Rihanna tweets after hearing of Bernadette Hernandez's Saturday death.

Bruno Mars suffered an unforeseen loss this weekend when his mother, Bernadette Hernandez, passed away on Saturday.

Hernandez, 55, died of a brain aneurysm in Mars' home state of Hawaii, at Queens Medical Center in Honolulu, according to TMZ. The singer has yet to comment on the unexpected passing of his mother, who was born in the Philippines and was a hula dancer.

Mars is expected to kick off a world tour on June 22 in Washington, D.C. with Fitz and the Tantrums serving as the opening act on the tour's first leg. No word yet on whether the tour will in fact open at that time.

In the wake of the tragic news, Mars has received lots of love and support from his showbiz colleagues, including Rihanna, who performed with Mars at the Grammy Awards back in February during a Bob Marley tribute. "Sending my love and condolences to @BrunoMars at this difficult time! I'm sincerely praying for you bro! #1Love," she wrote. Rihanna lost her grandmother last summer after a lengthy battle with cancer.

Former "American Idol" judge Randy Jackson also had words of support for the singer. He wrote, "terrible news. Praying for you @brunomars."

"Glee" star Amber Riley added, "No worse feeling than losing a loved one. My condolences. Prayers for @brunomars. I couldn't even imagine."

Mars has also received the support of his fans, who offered sympathies hours after the death was confirmed. "very sorry about your mother. My mother died from the very same thing when she was 33. My heart aches for you and your loss," @traciehudspeth wrote. @LunaErpelding wrote, "Love and condolences to @BrunoMars at this difficult time! I'm praying for you."

"My heartfelt condolences to Bruno Mars in the loss of his Mother ... she will always only be a thought away," @reneimh added.