Last week, Pete Waterman announced that the 'So Macho' star will join acts including Steps, Bananarama, Rick Astley and Sonia to perform at London's Hyde Park on July 11.
"I'm so excited," Sinitta said of the reunion. "It's really funny because I've been talking to people from those days who I haven't been in touch with for years.
"We've been finding each other on Twitter and planning to have tea and lunch and what we're going to do when we're all in London at the same time."
She continued: "It's going to be like a big class reunion. And I get to sing in Hyde Park, which is amazing!"
Watch Kylie and Jason's 'Especially For You' video below:
> Jason Donovan: 'Jealousy ended Kylie Minogue relationship'
Sinitta, speaking after filming for Nick Jr's A Bedtime Story with Arnie and Barnie, was asked if she was nervous about taking to the stage again and said: "I'm terrified, but I don't have to think about it just yet. We're in discussions about which songs we're doing, but I'm not sure how many it will be."
Adding that it would be "nice" to see Minogue, Sinitta said that she hopes the former Neighbours duo reunite to perform 'Especially for You'.
"Otherwise I'll sing it with him!" she laughed, offering her services should Minogue fail to sign up.
> Sinitta on Simon Cowell house intruder: 'He thought it was me'