Even though it has been six years since the last "High School Musical" movie the cast seems to still have nothing but love for one another.

According to E! News, Ashley Tisdale was more than happy to take to her Twitter account to congratulate her former costar following the success of his "Neighbors" movie which grossed more than $85 million over its opening weekend.

She wrote, "#NeighborsMovie is a must see! So good! I was laughing my ass off. Very proud of Zac :)." Later on Efron retweeted the sweet message.

While Tisdale was sharing kind words about the formerly drug abusing actor her best friend and his ex-girlfriend Vanessa Hudgens was busy gushing over the blonde beauty.

Ashley Tisdale is planning her walking down the aisle as the former Disney star is currently engaged to boyfriend Christopher French.

The "Spring Breakers" star excitedly spoke about her good pal's upcoming bachelorette party.

While at the Foundation's National Day to Prevent Teen Pregnancy event the 25-year-old told People, "Ashley's bachelorette party will be my first one."

Austin Butler's girlfriend admitted that she will not be helping to plan Tisdale's "last fling before the wedding. She admitted, "I'm just going for the good times."

Vanessa Hudgens revealed, "It's so exciting. And, it's so crazy because I just think of us as having fun and being silly and the fact that she is getting married, my mind is kind of exploding."

Chrisopher French asked his girlfriend to marry him back in August after only eight months of dating however, Tisdale explained that she knew he was "the one" from the very beginning.

She told Ryan Seacrest , "You know, I didn't [think it'd happen that quickly]," adding, "I think I've obviously been in long relationships in the past, but I think because of knowing what I wanted, I wouldn't have gone into a relationship, if it wasn't what I wanted.

"And I think from the moment that him and I met, I just knew it."

She went on to say, "I was like, 'OK, this is the guy.' And he knew the same thing. It was just this feeling that it doesn't get any better. I can't explain it!

"It's just natural between us. With other relationships, you're trying too much and trying to make it work and then there's just a moment when you find somebody and you're like, 'Holy s--t! This is so natural.'"

What are your thoughts on Ashley Tisdale and Christopher French's engagement? Let us know in the comment section below.