Rihanna almost cancelled gig after meltdown?

Rihanna needs a break!

Insiders say the singer almost scrapped a concert in Ireland this past Friday because she was so stressed!

Rihanna is said to have broken down shortly before the show in Dublin part of her Loud Tour, which features over 100 dates and was only talked around by a phone call to fellow singer Beyonce Knowles, according to British newspaper The Sun.

“She’s just a young woman who just wants to have fun, but she was feeling pretty low,” a source said.

“It’s a mix of exhaustion and stress. She’s been partying hard to take her mind off things, but there are days when she wakes up and doesn’t even know where she is because of the traveling.

“It’s no wonder she is feeling down.”

“Beyonce knows Rihanna needs downtime or she’ll burn out.”