I believe Ancel sings almost every Friday night at Coco La Palm. You may be able to reach him through them. If you call Coco ask for Keri ann who is the entertainment coordinator and she will probably give you his phone number. Sorry I don't know who Jumbo is. Ancel also walks the beach singing at Bloody Bay. Maybe someone going to RIU or Couples in the near future could get his phone number.