Complex sentence: Ken also spent time recording and touring with Lagwagon in the late-1990's, during which he helped craft 1997's Double Plaidinum, adding a unique flare to the band's high-paced melodic brand of punk rock.
Split into simpler sentences: Ken also spent time recording and touring with Lagwagon in the late-1990's. The musician helped craft 1997's Double Plaidinum, adding a unique flare to the band's high-paced melodic brand of punk rock.