World Entertainment News-Network said that since the two singers debuted in the '90s, a feud has brewed between them -- and only came an end recently after each singer presented the other with a gift for a momentous moment in her life.
"She got me a really beautiful crystal vase and a little crystal bucket that you can put ... champagne in (when I got married)," said the 25-year-old Aguilera. "And when she had her baby, I sent over a huge baby basket. I didn't know whether it was a boy or a girl yet, so I sent over just something really sweet, something cute."
Since Spears debuted in 1998 with her album, "...Baby One More Time," and Aguilera's self-titled debut album was released a year later, the two stars reportedly feuded over such issues as their public images and celebrity boyfriends like Justin Timberlake.