London: Christina Aguilera has once again sparked rumours of going under the knife.
A scar under her arm was apparently spotted when she waved to her fans a press conference for her new film, `Burlesque,` in Tokyo, reports a daily.
The small line could be the result of a transaxillary endoscopic breast augmentation- a breast enlargement technique where implants are placed through an armpit incision.
Experts said the popular method usually leaves an inch-long scar and is the preferred option for patients who want to avoid scars on the breast.
Aguilera`s decolletage has certainly increased over the years, and while could be the result of carrying more weight.
Her new flick is a song-and-dance extravaganza about a small-town girl trying to make it big.