[1] His career in Spanish-language media started in 1989 when he established a weekly Spanish trade publication Radio y Musica based in Tampa, Florida.
Numerous Spanish language recording artists performed during the annual events including pop star Marc Anthony.
[citation needed] Other notable artists to debut during the annual conventions, included Shakira, Alejandro Fernandez, Carlos Vives.
Alonso re-formatted WSKQ-FM from KQ 97.9 to Mega 97.9 a move that helped establish WSKQ into a powerhouse radio station.
Alonso consulted Spanish Broadcasting System's launch of KLAX-FM in Los Angeles known as La X 97.9 in 1992 before joining the company full-time.
KLAX-FM became the first Spanish-language radio station in Los Angeles to reach the number one ranking in Arbitron audience share.
The company was renamed Mega Communications in October 1998 after selling majority stake to New York-based Lindemann Capital in a leveraged buyout.
[8][9] After departing Clear Channel Radio in 2011, he started a private equity firm to invest in startup companies, real estate and Spanish themed eateries.