What a Wonderful World - Bob Sinclar, Axwell & Ron Carroll
What a Wonderful World - Rod Stewart
What a Wonderful World - Louis Armstrong
The Louis clip you posted is from the first of two BBC-TV shows. Each show was 45 minutes & they were taped on the same day, July 2, 1968. Aside from Louis the rest of the band is Tyree Glenn-trombone, Joe Muranyi-clarinet, Marty Napoleon-piano, Buddy Catlett-bass & Danny Barcelona-drums. Louis died three years later, on July 6, 1971. He was only on the road full time for another two months after this clip. By mid September of 1968 he was seriously ill in the hospital & was out of commisiion for most of 1969.