Conversation so far:
When did Glenn Frey begin his solo career?
After the breakup of the Eagles in 1980, Glenn Frey embarked on a successful solo career.
Did Glenn Frey collaborate with anyone?
In 1984, Glenn Frey recorded in collaboration with Harold Faltermeyer.
What was the song Glenn Frey recorded in collaboration with Harold Faltermeyer?
Glenn Frey and Harold Faltermeyer collaborated on The Heat Is On.

Question: what other songs did he do during his solo career?
Self-contained rewrite: What other songs did Glenn Frey do during his Solo career besides The Heat Is On?