PERSON@1 -LRB- born March NUMBER@1 , NUMBER@2 -RRB- is a MISC@1 musician and producer , best known for his work as the guitarist and lead vocalist , songwriter and producer of the multi MISC@2 pop punk band Sum NUMBER@3 .

PERSON@2 -LRB- born March NUMBER@1 , NUMBER@2 -RRB- is a MISC@1 singer and musician from the band Sum NUMBER@3 .
