Allegro can be:
1. R&B Singer
2. Iranian Black Metal
3. Brazilian Power Metal band
4. Trance project by Svenson & Gielen
5. Musical by Rodgers & Hammerstein II
6. Zespół Muzyki Dawnej Allegro - Polish early music group performing on replicas of historical instruments.
7. Chilean Trance producer. Born in Chile, he started his career in music early, by being part of the main producing companies in the country, boosting his proyection as a professional artist quickly and powerful, focusing in new boundaries.