Pop punk is exactly what it says it is, a hybrid of the attitude of 70's punk (sometimes it's actual sound as well), and pop. The most popular groups of this genre are Green Day and Blink-182, but there are many to choose from.
The British group "A" recorded together from 1996 to 2005 and had some success in their home country as well as Germany, but little elsewhere. Their most popular album was "Hi-Fi Serious" in 2002 with it's top 10 hit UK hit, "Nothing"
They were made up of twin brothers Jason (vocals) and Adam Perry (drums), younger brother Giles (Keys) with Mark Chapman (guitar) and Steve Swindon (bass) rounding out the original lineup. In 1997, Daniel P. Carter would take over duties at Bass until 2007, where John Mitchell took the spot for a couple of years. Although only doing a brief tour and a couple of one-off performances, Carter would again play bass since 2010 whenever the band would reform. He is mostly known today as the host of BBC 1's, "Rock Show"
The song itself is harder rocking than most of the group's material, as they tended towards the more melodic. If you want to hear a great representation of that side of the band, check out, " 'A' Vs. Monkey Kong" (1999)