Kylie Minogue left 'heartbroken' following split from Andrés Velencoso

and her boyfriend of five years

have reportedly split, following months of speculation that their relationship was on the rocks.A close friend of the pop star said that Kylie had been left "devastated" and "heartbroken," but that no one else was involved in the break-up.Kylie's spokesperson added that the singer and the Spanish model have remained on good terms.

© Photo: Getty Images

Friends of Kylie say that her busy work schedule led to their split. While the Australian songstress has

UK, Andrés has been busy pursuing his dream of becoming an actor."When Kylie signed up for

, they knew they couldn't cope with the long-distance pressures the job would put on them," an insider told

.The

star has also spent the past year working incredibly hard on her twelfth studio album stateside, while also preparing for her ambitious world tour planned for next year."Kylie and Andrés haven't spent much time together because she's been holed up in a studio in Los Angeles working on her new album," said the source."He's also been trying to carve out an acting career for himself."

© Photo: Getty Images

The former lovebirds were last photographed together in public in August, when they

J Sheekey.Kylie has previously described Andrés as "the one", after they reached their four-year mark. The couple first met while filming an advert for her perfume range in 2008.Kylie has previously been romantically linked to her former

co-star Jason Donovan, Lenny Kravitz and

.