The unique vocal style of Integrity Worship Singers(“IWS”) is characterized by their use of rich harmonies, the blending of voices, and the use of falsetto to achieve high notes.

If you want to learn to sing like IWS, you should start by working on your blending skills, improving your range, and mastering the use of falsetto.

A good place to start is with Singing Carrots' vocal training program, which offers a series of exercises specifically designed to help you improve your blending skills, extend your vocal range, and develop your falsetto.

The vocal range test can help evaluate your current vocal range and identify your strengths and weaknesses.

To develop your blending skills, you should try singing with a group regularly. This will help you learn to match your voice to others and hear different harmonies. Also, practicing with a vocal pitch monitor can help you learn to sing on pitch and improve your pitch accuracy.

When you are ready to work on your falsetto, Singing Carrots has several videos demonstrating the technique. The "Farinelli Breathing" exercise is a great starting point. Once you have mastered the basics, try the "Sustain Vocal" or the "Vocal Break” exercises to extend your range further.

Next, you should listen to IWS's music to study their style and techniques. Pay attention to how they blend their voices together, their use of falsetto, and their unique phrasing. If you want to practice singing along with their songs, check out Singing Carrots' song search function to find songs that match your vocal range.

In addition to that, Singing Carrots offers an extensive set of articles covering a range of singing topics and techniques, from breathing basics, voice registers, and voice breaks, to posture and articulation. The articles "Why do we sing out of pitch?" and "Avoiding constrictions" offer practical advice to help avoid common problems with singing.

Finally, remember to take care of your voice, as vocal health is essential for sustained development and practicing. The "Vocal Health" article provides Healthy Habits to care for your instrument.

In conclusion, to learn to sing like IWS, you should concentrate on developing your blending skills, extending your range, and mastering the use of falsetto. Listening to their music to understand their approach and using Singing Carrots resources such as the “Pitch Training - Educational Singing Game” tool, singing courses, and vocal pitch monitor can all help you achieve your goals.