The 39-year-old star - who was an original member of New Kids on the Block before quitting because he didn't like their musical style and going on to find fame as rapper Marky Mark - admits he realises now he wasn't as cool as he once thought.
Asked how he feels about his singing career, he said: "Ah man, embarrassed. I thought I was so cool back then, but when I see the footage, I was such an a*s."
However, his family won't let him forget his solo career and a nickname from the era still plagues him.
He told FHM magazine: "I remember seeing this thing on VH1, some Sexy People Of The 90s show. My brother Paul was watching with me and my assistant they were just killing themselves with laughter.
"To top if off I was number one! So for ages afters whenever they'd call, they'd be, 'Can we speak to the Sexiest Man Of The 90s please? They keep killing me."