Srila Prabhupada describes in the 17th chapter of the Adi lila that during the Sunday Feasts in ISKCON temples, he said when there is kirtan and where there is prasadam, surely Lord Caitanya will be personally present. Well, every Sunday Feast is kirtan and prasadam so we can consider that the guest of honor in every Sunday Feast is Lord Caitanya who's personally present!
(KKS, 4 July 2010, Durban, SA)