The group, whose average age is 18, came to global attention
after posting two cover versions of other people's tracks on
YouTube. Rival boy band One Direction liked their work so much
that they then invited them to support them on their world tour.
The Sydney band's success pushed last week's number one — dance
track "I Got U", by Duke Dumont and Jax Jones — into second
In the albums chart, Sam Bailey, a former winner of "X factor",
a TV talent show, and a former prison guard, took the top spot
with her debut album "The Power of Love".
The album has sold nearly 73,000 copies in the last seven days,
the Official Charts Company said, making it the fastest-selling
album of 2014.
George Michael's album "Symphonica" fell one place to number
(Reporting by Andrew Osborn; editing by Andrew Roche)
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