VIDEO : Spice Girls Plan Reunion Tour

(CNN)Emma Bunton -- also known as Baby Spice -- teased a Spice Girls reunion tour Monday. Bunton burst into laughter on her Heart Radio breakfast show and refused to answer questions about whether the group would be reuniting. The Sun newspaper was first to report that a tour announcement was in the works, suggesting that Posh Spice Victoria Beckham would not join the other four. The account @spicegirls was established in October and the photo of the account shows only members Bunton, Geri "Ginger Spice" Halliwell Horner, Melanie "Mel C" Chisholm and Melanie "Mel B" Brown.