The Bros singer was revealed as one of the celebrity contestants for the BBC One show on Monday, but has been quick to point out that despite having spent his life on stage, he has no real dancing experience.
On Tuesday, Goss told BBC Breakfast that the prospect of dancing in the Strictly ballroom was far scarier to him than any A-list audiences he'd had at his shows.
Host Sally Nugent asked him whether he got nervous performing and he replied: "I haven't had good butterflies in a long time.
"I'm used to singing for anyone you can imagine, from Muhammad Ali to the President of the United States, I've done so much and to get butterflies about something is a good feeling.
"I don't get nervous usually, but I am nervous about doing Strictly, yeah."
Goss, 53, is originally from London but has been living in the US along with his twin brother Luke for the last 25 years after their pop success, and has had a decade-long residency singing in Las Vegas.
He has moved back to the UK ahead of his Strictly debut and asked why he'd decided to say yes to the show after being asked in other years, and he replied: "When you're having the conversation it all sounds like a great idea at the time, you're in America and like, 'yeah, alright, I'll do it' and then it becomes a reality.
"I did my physical yesterday, thankfully passed it with flying colours, but there's still strength training I have to do and I'm taking it seriously in regards to my health and just making sure I'm strong."
Goss was revealed as a cast member on Monday's This Morning, where he said: "I’m eating everything that’s favourable to Spandex. I’ve got to make sure it’s alright, I’m excited.”
He added: "I’m optimistic because I’m very supple from the knees down...I can't even look at clips of Strictly right now because I'm so terrified."
Watch: Matt Goss confesses to being 'nervous' about Strictly