Monday 28th November 2011 by Holly Frith | Photos by WENN.com

Tags: Rihanna

Rihanna made a tearful phonecall to Beyonce after she nearly cancelled a concert after suffering a meltdown under the stress of her current 'Loud' tour, it has been reported.

According to The Sun, the singer threw a wobbler just hours before she was due on stage in Dublin on Friday night (November 25).

Rihanna has been suffering exhaustion from her gruelling ten-month, 101-date tour.

The singer told fans over Twitter following the show: ''I'm so light-headed!"

A source said: "She's just a young woman who just wants to have fun, but she was feeling pretty low.

"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 travelling. It's no wonder she is feeling down."

Beyonce advised Rihanna to complete her tour commitments then take a year off to relax.

Rihanna - live