7/15 Tio's Hint

This is “Summertime Blues” by Eddie Cochran:

Dude would’ve had a monster career and be remembered as one of the greatest rock stars ever had he not died tragically at just 21. RIP.

7/14 Murphy's Hint

This is Quickdraw McGraw, a mostly-forgotten Hanna-Barbera character who had his own TV show at one time:

His alter ego was a Zorro copy named El Kabong whose signature move was hitting his enemies over the head with an acoustic guitar and yelling “KABONG!” which later got corrupted into a sexual act, as defined by Urban Dictionary, that substituted the…

His alter ego was a Zorro copy named El Kabong whose signature move was hitting his enemies over the head with an acoustic guitar and yelling “KABONG!” which later got corrupted into a sexual act, as defined by Urban Dictionary, that substituted the guitar for… something else