The pair collaborated on the 2000 single 'Out Of Your Mind', which reached number two in the UK singles charts, but failed to reproduce its success in their respective solo careers.
While Bowers is releasing comeback single 'All She Needs' this month, he suggested to Bang Showbiz that Beckham should rule out a return to the music industry.
"I think she should stick to fashion design but she’d probably say that herself," he said. "The whole fashion thing is definitely where her future lies."
However, Bowers stated his belief that Beckham's vocal talents are often underrated, adding: "She’s the first person to say that she’s no Mariah Carey but she can hold a tune. You don’t make it as far as the Spice Girls did if you can’t sing at all."
Beckham has previously admitted to being a "little bit lost" when she attempted to forge a solo career, describing it as a "mistake".