PERSON@1 , -LRB- born April NUMBER@1 , NUMBER@2 -RRB- often credited as AJ , is an MISC@1 actress , singer-songwriter , and instrumentalist .

PERSON@2 `` AJ '' Michalka -LRB- born April NUMBER@1 , NUMBER@2 -RRB- is an MISC@1 singer and actress from LOCATION@1 , LOCATION@2 , LOCATION@3 .
