1.   A possible suitor wearing a Walkman sang along intermittently much louder than he realized.

2.   Jess was singing along to the radio.

3.   She was singing along to a tune on the radio that sounded vaguely familiar.

4.   Sing along if you know the words.

5.   The crowd was dancing and singing along.

6.   And her songs have the clear melodies and emotional impact that could make listeners sing along before they worry about the words.

7.   And maddeningly inconsistent user interfaces are likely to keep you from singing along.

8.   And if you want, you can sing along to it.

9.   And she urged the audience not to be shy about singing along.

10.   And the audience, which clapped and sang along throughout the show, plainly loves Kowalczyk and company.