Ashley Tisdale - Hot Hollywood Party 2008

High School Musical sweetheart Ashley Tisdale hits up US Weekly‘s Hot Hollywood Party at New York City’s Skylight on Tuesday.

Unfortunately, she was just as cold as BFF Vanessa Hudgens on the blue carpet but took the time to wave and say hello! Waves hello.

According to Forbes, Ashley, 23, reportedly earned $5.5 million last year thanks to her solo album, Headstrong, as well as endorsement deals from Ecko Red, T-Mobile and Degree Girl deodorant.

HSM costar Zac Efron, 21, reportedly banked $5.8 million while his girlfriend Vanessa, 19, earned an estimated $3.2 million from her solo albums and endorsement deals with Marc Ecko and Neutrogena.

Read the full article on the success oft he High School Musical cast at Forbes.com.