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. I know from the minute my kids were born, we’re singing to them,” Ms. Rachel, whose real name is Rachel Griffin Accurso, said. Ms. Rachel launched her mega popular YouTube channel in 2019 with her husband, known online as Mr. Aron. Big arrangements and simple songs“I’m So Happy” was co-produced by Aron Accurso and Grammy winner Scott Riesett and principally arranged by Mr. Aron as well. Ms. Rachel says she knows her album may bring attention to her advocacy and vice versa.