Simon Cowell broke his back doing a WHEELIE on $21,500 'fastest bike on earth'

Todd McKenney's ex-boyfriend Simon Gallaher (who wed Todd's SISTER Lisa) reignites feud

Simon Cowell was outside with son Eric, six, and stepson Adam, 14, when he fell off electric bike

Simon Cowell will be 'back on his feet in three weeks', writes ALISON BOSHOFF