A couple of additional points:
Pete Ham named the band "The Iveys" in TRIBUTE to his favorite vocal harmony Band The Hollies... NOT as a pun !
Pete had them sing "Just one Look" over and over until their harmonies were as tight as the Hollies....Badfinger's superb "Day After Day" proves he got them right too !
Joey Molland was a school chum of Terry Sylvester (Ex-Hollies , Escorts, Swinging Blue Jeans, Griffin & Sylvester) ...they have done shows as a Duo in recent years.
Later Badfinger Drummer Pete Clarke was earlier in The Escorts too.
Allan Clarke (of The Hollies) later recorded a respectful cover version of Pete Ham's Badfinger USA hit "Baby Blue" on his 1980 solo album "The Only One" ( aka "Ledgendary Heroes" in the USA)