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Season 2 Episode
- Season 2 Show #19 Host: Sammy Davis, Jr.
- Season 2 Show #20 Hosts: Jerry and Gary Lewis
- Season 2 Show #21 Host: Dave McCallum
- Season 2 Show #22 Host: George Maharis
- Season 2 Show #23 Host: Paul Anka
- Season 2 Show #24 Host: Petula Clark
- Season 2 Show #25 Host: Peter Noone (of Herman's Hermits)
- Season 2 Show #26 Hosts: The Serendipity Singers
- Season 2 Show #27 Host: Barry McGuire
- Season 2 Show #28 Hosts: The Dave Clark Five
- Season 2 Show #29 Host: Michael Landon
- Season 2 Show #30 Host: Frankie Avalon
- Season 2 Show #31 Host: Robert Vaughn
- Season 2 Show #32 Host: Jerry Lewis (Christmas Show)
- Season 2 Show #33 Host: Alan King
- Season 2 Show #34 Host: Roger Smith
- Season 2 Show #35 Host: Leslie Uggams
- Season 2 Show #36 Host: Trini Lopez
- Season 2 Show #37 Host: Dean Jones
- Season 2 Show #38 Host: Frankie Avalon
- Season 2 Show #39 Host: Roger Smith
- Season 2 Show #40 Host: Skitch Henderson
- Season 2 Show #41 Hosts: The Righteous Brothers
- Season 2 Show #42 Host: George Hamilton
- Season 2 Show #43 Host: Pat Boone
- Season 2 Show #44 Host: Gary Lewis
- Season 2 Show #45 Hosts: The Serendipity Singers
- Season 2 Show #46 Hosts: Chad And Jeremy
- Season 2 Show #47 Host: Soupy Sales
- Season 2 Show #48 Host: Paul Anka
Hullabaloo - Season 2 Episode 8 Show #26 Hosts: The Serendipity Singers
0.00 30 minutes 1) The Serendipity Singers (hosts) – ""Sing Out""
2) Little Jimmy Dickens – ""May the Bird of Paradise Fly Up Your Nose"" 3) Marvin Gaye – ""People"" (brief) and ""Ain't That Peculiar?""
4) Dusty Springfield – ""Some of Your Lovin'"" 5) Donna McKechnie – ""Do I Hear A Waltz?"" 6) Bruce Scott – ""So Much to Live For"" TOP POP MEDLEY 7a) Serendipity Singers – ""Yesterday"" 7b) Marvin Gaye – ""Taste of Honey"" 7c) Bruce Scott and Dusty Springfield – ""Turn, Turn, Turn"" 7d) All (Hullabaloo guests) – ""Round Every Corner""
