The duo were among a handful of celebrities who attended the event, staged at the Big Brother house. Price briefly entered the house alongside Bowers, and friends Michelle Heaton, Gary Cockerill and Phil Turner.
Price dated the Another Level singer for two years from 1998. The 33-year-old has admitted that she was "heartbroken badly" by the split.
"He was the only guy who completely taught me about having your heart broken," she said earlier this year. "I've always said that Dane's the one who did that. Because of Dane, he's made me have my barriers up and even with Pete [Andre], I'd like to say they all went down but there were a couple up still.
"Since splitting with Dane I have never let my barriers 100% down with anyone. Being heartbroken, that hurt. It's not a nice feeling."
Bowers himself competed in last year's Celebrity Big Brother alongside Price's second husband Alex Reid.
Following the breakdown of their marriage earlier this year, Bowers criticised public sympathy for Reid, claiming that the cage fighter had achieved his fame thanks to dating Price.
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