Zayn Malik has reportedly sparked fear among record executives that he might quit One Direction.
An informant has told Celebuzz that Malik has grown disillusioned with fame ever since rumours emerged that he cheated on Perrie Edwards with an Australian waitress.
[Zayn Malik and Perrie Edwards)
Malik has been described by the source as being in "a daze" around his bandmates and missing home in recent days, allegedly leading Syco boss Simon Cowell to step in to offer support.
"There is growing concern among the bosses that Zayn is on the brink at the moment," the purportedly highly-placed insider disclosed.
The 20-year-old singer has apparently been promised a lighter schedule in order to give him time to cope with stress.
Earlier in the week, reports emerged that Malik had made inroads into making up with Edwards by presenting her with a teddy bear.
One Direction are currently preparing for a busy year of touring that will see them perform in Los Angeles, Las Vegas, Dublin, London and Milan.
Watch the video for One Direction's 'Kiss You' below: