YouTube sensation Ms. Rachel announces debut album with Mr. Aron, 'I'm So Happy'

Parents of toddlers everywhere, prepare yourselves. YouTube sensation and music teacher Ms. Rachel and her husband, Aron Accurso, will release their debut album, the 23-track "I'm So Happy," on Sept. 25. "Music is such a wonderful way for people to bond, for parents to bond. I know from the minute my kids were born, we're singing to them," Ms. Rachel, whose real name is Rachel Griffin Accurso,…