Gaga fears mobiles could cause tumour

London: Pop singer Lady Gaga fears excessive use of mobile phone could cause brain tumour.

"There have been various reports suggesting mobile phone use can increase your risk of developing cancer and brain tumours and even though there`s no firm evidence, it really freaks her out," contactmusic.com quoted a source as saying. "She`s now insisting that whenever she makes a call, one of her team member dials the number for her and holds it till the call gets connected. She then listens to her calls on the speaker phone," the source added. IANS