(music-news.com) - Mel B shocked parents at a recent Spice Girls concert after making crude and sexual remarks on stage. Mel, nicknamed Scary Spice, joked with fellow bandmates Mel C and Emma Bunton about her sex life, despite children being in the audience at London's O2 arena. Baby Spice Emma was celebrating her 32nd birthday on Friday (18.01.08) and was given a birthday cake and candles on stage, before Mel B told her to "give it a blow job" - a reference to oral sex. The girls then started talking about what they'd been doing "too much" of lately in reference to their hit song 'Too Much'. Mel B said she had done too much "Tossing the salad" - a crude reference to an unhygienic sex act - as well as too much "stimulation" of intimate areas of her body. One parent, who had taken her children to the concert, fumed: "It crossed the line. I know the Spice Girls are supposed to be a bit controversial but this is a family show. It should come with a warning if that sort of language is going to be used. I wanted to walk out but that would have upset my kids." Meanwhile, Mel B's bandmate Victoria Beckham has revealed the group pray before going on stage. She said: "We do a prayer before we go on every single night. We hold hands with all the dancers and the band and we do a funny little prayer that one of the dancers does. It's become a little bit like a ritual to us."