Alphanumeric Help.

[bear81]

Music round
I S3S
5C in HH
G2S
A1B the D2DCC

Sport round
NMR5

Quotes and Sayings
S16 and NBK
A CH9L

[dannyk13]

A cat has nine lives?

[aelmpvw]

quotes and sayings: a cat has nine lives

[aelmpvw]

music: five colours in her hair

[Toorak]

Quotes - sweet 16 and never been kissed

[Toorak]

Music - I saw 3 ships

[vulcan42]

S16 and NBK
Sweet sixteen and never been kissed.

[aelmpvw]

music: go 2 sleep

[Toorak]

Music - goody 2 shoes

[aelmpvw]

^that's probably better Toorak :-)

[JJ109]

Is the last music one actually two?

Another One Bites the Dust
+ 2DCC

[bear81]

2DCC is exactly how it is written on the quiz.

[mallyh]

don't know if this helps ...nigel mansell car was red 5?

[Salty]

If JJ109 is right and two music clues are merged, then 2DCC could be Two Door Cinema Club - https://en.wikipedia.org/wiki/Two_Door_Cinema_Club

[elliemay1]

I thought of that but decided against it as they're a group and the other answers are songs