Dave Appell , who with Kal Mann , wrote or produced a number of hits for Mr. Checker , Dee Dee Sharp , the Dovells and other Philadelphia groups , wrote a song for one of their favorites , Bobby Rydell ; '' Wildwood Days '' -LRB- '' Every day 's a holiday and every night is Saturday night '' -RRB- made it as high as No . 17 on the Billboard national charts in the summer of 1963 . ''