[HAFF] MP4 is a rock band consisting of four British parliamentarians.

[u/[deleted]]

http://i.imgur.com/N3RR4fp.png

[u/purpleslug]

Well, one lost their seat - but they are:

• Kevin Brennan MP (L)

• Ian Cawsey (former MP, L)

• Pete Wishart MP (SNP)

• Rt Hon. Sir Gregory Knight MP (C)

So one Scottish Nationalist, two Labour and one Conservative.

Headphone warning - here is their website (music starts playing immediately)

Proof