The duo began dating in spring of 2009 shortly after the Disney star had broken up with V Factory (who Speer has also worked with) band member Jared Murillo.
A source told , "They had been on and off for a while.
The 20-year-old model hit the red carpet at the event held at DREAM Hollywood on Thursday (November 2) in Hollywood.
She paired her furry, off-the-shoulder dress with black heels, silver and gold jewelry adorned with diamonds, and a pop of red lipstick, styling her blonde locks into curls.
The bride-to-be :was very hush hush on any questions about her upcoming nuptials, but she sure did rock that engagement ring!
The song was re-arranged by Ashley’s husband, Chris, and the tune is eerily beautiful with the acoustic guitar accompaniment.
The duet appears to be the first of many Ashley plans to collaborate on this year, asking fans and subscribers who they would like to see in future videos. All we can say is that we hope there are more This girl. Three movies, toured the world, played for 80,000 in South America, dressed up in wigs so we could go get food in the venue and no one would recognize us (they didn't), heartbreak, love, laughing, crying, and I honestly couldn't have done all that with out her.
Thankfully, we were able to chat with Miss Tisdale via e-mail, and she chimed in what drew her to her first foray into TV production, her dating must-haves, Housewives -- hey, it's Bravo after all -- and more.
Check out our exclusive interview below and be sure to tune into the finale tonight at 10/9c: The Dish: What made you decide to go into the production side of TV?
Ashley Tisdale and longtime BFF Zac Efron looked like a heckuva lot more during a birthday beach outing in Malibu Saturday.