I've seen Darlene sing DA DOO RON RON on at least two tv shows, as if it was one of her songs. From what I recall from reading her book, Darlene recorded it first, but Phil wiped her vocal, and replaced it with LaLa. But Darlene says she still hears herself underneath.

I attended a PBS Girl Groups taping many years ago, and LaLa entered the audience area while Darlene was on stage. They acknowledged each other, and it seemed friendly to me. I gather the "beef" between LaLa and Darlene heated up again recently via some comments on Facebook. Its rather sad to have such angst at this late stage, I think.