It wasn't easy for AJ Michalka ... learning Aly was gearing up to tie the knot with Ringer, whom she married in 2015 and now shares 9-month old son Jack with. "He's literally become like my ...

Aly & AJ were writing “What It Feels Like” — a song about learning to admire “the beauty” of their physical changes — when Aly went into labor with her son Jack. On Friday, the sister ...