Byron & Donavan close out 2021 with songs featuring "21" the age, number, idea, whatever. IDs out, please. Ones too obscure to find! Two in a row! It goes two, one, two, one, and then some! 
PLAY–Chicken Feet - Contact Try Two
Jimmy Ågren - One Eyed Girl
Oregon Space Trail Of Doom - Glass Of Wine
Anzhelika Varum - Two Minutes From Love
Man From Electone - K2
Sorten Muld - 2 Sisters
Ozric Tentacles - 0–1
EBN - Electronic Behavior Control System Ver 2.0
Solex - One Louder
Scott Walker - Jackie
The Commodores - Too Hot Ta Trot
Three Dog Night - Liar
Blues Explosion! - Flavor Part 2
An-Cafe - One Reversal Love Game
Perez Prado - Theme From The Monkees
PLAY–Bob Marley & The Wailers - Brand New Second Hand Tk 2
Mort Garson - Theme From Music For Sensuous Lovers Pt 1
Steely Dan - Third World Man
Africa Hitech - Footstep
Sex Mob - You Only Live Twice
Dengue Fever - One Thousand Tears Of The Tarantula
Creation - Biff Bang Pow
Manhattan Transfer - Stompin' At Mahogany Hall
Tsar - Afradio Pt Two
Laibach - One After 909
Bert Kaempfert - Similau / Zambesi
PLAY–Anzhelika Varum - Two Wings
The Vindys - No One Can Tell Me
The Puppini Sisters - Sway
Carey's Problem - Led Zeppelin
Hanne Hukkelberg - IRL
Kahimi Karie - Alcohol
The Hardkiss - A2
Chrome Hoof - One Day
Polysics - Watson 20 12
Mort Garson - Music For Advertising #2 and #1
Robert Fripp - Water Music 2
Renaldo & The Loaf - One Dream Per Night / I.4
Greyboy - Outerlude 2 (Cuomo QAnon Lawyer Mix)
The Fixx - One Thing Leads To Another (Extended Version)
PLAY–Anzhelika Varum - Two Ways, Two Roads
Three Dog Night - One
The Tourists - One Step Nearer The Edge
Hugo Montenegro - You Are The Sunshine Of My Life
The Coachman - Two New Girls
Kahimi Karie - One Thousand Twentieth Century Chairs (Hirohisa Horie Remix)
Dieter Moebius & Dwight Ashley - Obfuscation No. 2
Can - One More Night
Perez Prado - The Gentle Rain
Bert Kaempfert - A Swingin' Safari
Diddley Squat - Two Of Us
Quincy Jones - One Note Samba
Adam Ant - Goody Two Shoes
Spice Girls - One Of These Girls
