Rosario is known for hits such as ‘Kulikitaca’, ‘Resistire’, ‘Seguire’, ‘Jenny’ and ‘Viborar del Mar’.

Rosario was the first solo merengue artist to ever sell out Madison Square Garden, United Palace, Altos de Chavón, la Plaza del Toro, Madrid, and Cuervana Stadium, México.

In the late 1980s, after 12 years of being with his brothers, Toño was removed from the group and began his own solo career.

With his second album, "Atado a ti" sold more than the expectations of the label and stayed at the Billboard Charts for more than 30 weeks.

In 1994, he signed with WEA Latina, followed by the release of the albums "Me olvide de vivir" (1994) and Quiero Volver a Empezar (1995).

La Magia del Cuco, released in 1999, become his first album to be certified platinum by the RIAA, with sales over 200,000 copies.

In that same year, Toño performed at The Merengue Festival in Santo Domingo, Dominican Republic.

[6] Toño en America, dropped in 2002, was moderated success and debut at in Dominican Republic Best Selling Albums Charts.

The title track was nominated as "Tropical Airplay Song of the Year" at the 2006 Latin Billboard Music Awards.

[15][16][17] Tono Rosario married Marilyn Brenes in 1983, at Marriage Palace, in New York City.

2 2006: Antología Musical 2007: La Bomba Rosario's version of Kulikitaka became viral on TikTok in 2021–2022, becoming its own "challenge", resulting in legal issues for some participants.