Hazel Flagg was an American soprano, best known for her bright tone and impeccable diction. To learn singing like Hazel Flagg, it's important to focus on developing a strong sense of musical phrasing and an understanding of how to use dynamics to convey emotion in a piece.

One of Hazel Flagg's signature techniques was her ability to move seamlessly between her chest voice and head voice. A great way to practice this technique is to use Singing Carrots' Voice Registers & Vocal Break article and exercises.

Hazel Flagg also performed a number of popular songs, such as “A Pretty Girl is Like a Melody” and "Indian Love Call". To learn these songs and really understand how Hazel Flagg performed them, consider using Singing Carrots' Song Search feature to find sheet music and karaoke tracks.

In addition to these resources, Singing Carrots offers a wealth of practical advice for singers of all skill levels. To help you get started, be sure to check out their articles on Breath Support, Articulation, and Why do we sing out of pitch?.

Overall, with a combination of practice, mentorship, and the right guidance, anyone can learn to sing like a pro. Good luck!