2. Sylvester Stallone
The brother of Sylvester Stallone, Francesco Stallone Jr. recorded a top 10 Billboard hit in the ’80s.
Explanation:
Francesco Stallone Jr. is an American actor, singer-songwriter and guitarist. He is the younger brother of Sylvester Stallone. He was born on July 30, 1950.
Stallone wrote a song "Far from Over" along with Vince.
The song appeared in the film Staying Alive (1983) and also got featured in the film's soundtrack.
It was a top-ten U.S. single in September 1983, peaking at number ten on the Billboard Hot 100, becoming his only major hit.
Source: Wikipedia