Beyoncé just stopped the show before it began!
Ch-ch-check out the AH-Mazing opening performance (above)!
Hilary Duff was seen greasing up the ole vocal pipes with some Starbucks and water on Sunday. Gotta replenish, gurl! Caffeine dehydrates!
We can't blame Lizzie McGuire for making sure her throat was ready to do some serious belting, because Hilary was later seen visiting a music producer's house in Los Feliz.
This gets us super excited for her new album that's supposed more geared towards Electronic Dance Music. Why Not? We'd love to hear Hilary's voice with chest rattlin' UMPH UMPH UMPH UMPH!
P.S. CLICK HERE to read on about the 10th anniversary of Hilary's Metamorphosis, and her brand spanking new record coming soon to ears near you!
[Image via AKM-GSI.]