1. Then she started singing Lady Gaga songs a cappella.

2. They sang an a cappella mass.

3. Singing both solo and a cappella with rich harmonies was also part of the slave heritage.

4. They performed a cappella.

5. The klapa music is a form of a cappella singing.

6. A seven-man a cappella group called Naturally 7 played “Ready or Not, ” an original song that evoked the soulful 1960s sound of the Motown record label.

7. There was even a wonderful folksy interlude mid-meal, when a group of men in the queue burst into an a cappella song, and then gave the stage to an accordionist, who played a sweet, sad melody.

8. When not burying his nose in a book, Wentworth sang baritone in the internationally-known all-male a cappella group Princeton Tigertones, who busked through Europe and the Middle East every summer.

9. Then according to the accompaniment, we divide choir into A Cappella and Choir With Instrumental Accompaniment.