If you go on Chris Evans' website on Monday, there will be a list of the music played today. If you can find a song you know, and track back or forwards to the unknown song, you can find it that way.
If not, post some clues on here - people are very good at answering queries like this.
W.Hanna — The Smurfs
Televisions's Greatest Hits 70's & 80's . The Spencer Davis Group — Gimme Some Lovin'
Fontana: Chapter 1. The Birth (60's) . Dusty Springfield — You Don't Have To Say You Love Me
Dusty- The Silver Collection . The Rubettes — Sugar Baby Love
The Greatest Hits Of 1974 (Various) .The Script — For The First Time
(CD Single) . ABBA — Ring Ring
Abba . Nell Bryden — What Does It Take?
(CD Single) .Moira's Golden Oldie
The Shadows — Apache
The Shadows - First 20 Years At The T . Doris Day — The Deadwood Stage
A Portrait Of Doris Day .The Goo Goo Dolls — Home
(CD Single) . Hues Corporation — Rock The Boat
Million Sellers Vol.14 - The Seventie . Jason Mraz — Make It Mine
(CD Single) . The Coral — In The Morning
(CD Single) . Sammy Davis Jr. — The Candy Man
Hits Of 1971 & 1972 (Various Artists) . Robert Plant — Angel Dance
(CD Single) . Dolly Parton — Better Get To Livin'
(CD Single) . OneRepublic — All The Right Moves
(CD Single) . The Osmonds — One Bad Apple
The Very Best Of The Osmonds . Thea Gilmore — You're The Radio
(CD Single) .Gobsmackers #1
Fleetwood Mac — Big Love
Fleetwood Mac - Greatest Hits .Gobsmackers #2
Donna Summer — I Feel Love
Donna Summer - On The Radio . The Cardigans — Lovefool
The All Time Greatest Movie Songs . Electric Light Orchestra — Rockaria!
Light Years - The Very Best Of ELO . Thompson Twins — Hold Me Now
80s Mania (Various Artists) . Leona Lewis — Run
(CD Single)