Demi Lovato's stepfather, a childhood friend of Sel talked about it on his twitter. Check out:
Redraider30 : Eleven years later and I'm looking for Demi and Selena side by side in iTunes.Wow! Just thinking about it brings back my allergies.
Redraider30 : Awww, congratulations! Selena! I love your album!
With allergies, it meant to cry, is that he uses the excuse not to assume that crying, Demi said that in a recent interview!