Lewis Hamilton and Nicole Scherzinger have ended their four-year relationship.
The couple are said to have split because their hectic work schedules meant they saw very little of each other.
"They are still very good friends and it was an amicable split," a friend told the Daily Mail.
"But they just decided it was impossible to keep the relationship going with such conflicting work schedules."
A representative for the pair confirmed the news.
Nicole, 33, currently stars as a judge on the X Factor USA and is based in Los Angeles.
Lewis, 26, meanwhile, travels all over the world as a top F1 racing driver and resides in Switzerland.
The couple started dating after meeting at the European Music Awards in Munich in 2007.
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