He received his first single release writing credit on Ivy Queen's debut single "
In The Zone" featuring
Wyclef Jean in 1998. The song peaked at #38 on the
Billboard Rhythmic Top 40 chart. He also received production credits on Queen's third and fourth studio albums:
Diva (2003) and
Real (2004).
Diva peaked at #24 on the
Billboard Top Latin Albums chart. On the
Billboard Top Heatseekers (South Atlantic) chart, the album peaked at #8. On the
Billboard Reggae Albums chart, the album peaked at #4. On the
Billboard Tropical Albums chart, the album peaked at #1, spending four nonconsecutive weeks at the top with a total of 86 weeks on the chart, becoming the eighth best-selling Tropical Album of 2004. While,
Real, on the
Billboard Top Latin Albums chart, peaked at #25, one position higher than
Diva. On the
Reggae Albums chart, the album peaked at #4, her highest peak on the chart with
Diva reaching the same position, while spending a total of 17 consecutive weeks on the chart.
Flashback, a retrospective of Queen's previous hits along with a few new ones featured "Quiero Saber" which is credited to Gran Omar. In its first week of release,
Flashback scanned 5000 sales; however failed to debut on the
Billboard 200. As of March 2007, the album has scanned over 104,000 sales in the United States and Puerto Rico alone. It was able to break their peak at #24 on the
Billboard Top Latin Albums chart when it reached #10. It reached #2 on both the
Billboard Top Heatseekers for the Pacific and South Atlantic areas. It reached #3 on the
Billboard Latin Rhythm Albums becoming their debut on the newly instated chart. After this chart was instated, it was revealed that reggaetón albums could no longer appear on the
Billboard Reggae Albums and
Billboard Tropical Albums charts, deeming
Flashback ineligible. Omar is credited with the following songs: "
Baila Así", "
Dee Jay", the fourth single from
Diva "Guillaera", "
Matando", "
Money Making", and the second single from
Tony Touch's album
The ReggaeTony Album: "
Saca La Semilla". Following his divorce from Ivy Queen in 2005 and their nine-year marriage, he formed a reggaeton/hip-hop group with Rey Severo releasing one album to date
Materéal (2007) on Go! Records. A year later, Navarro stated that Queen owed him money from the sales and production of the album
Cosa Nostra: Hip-Hop, which they presented together due to their obligations and contract with Univision. Queen denied the claims. No legal action was taken, however. == Discography ==