Are Calvin Harris and Nicole Scherzinger hooking up?

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Calvin Harris and Nicole Scherzinger Dating?
Calvin Harris and Nicole Scherzinger Dating?

Is Calvin Harris rebounding from Taylor Swift with fellow pop star Nicole Scherzinger?

Despite the rumors, sources told E! News that the pair are strictly friends. Harris and Scherzinger were photographed arm-in-arm leaving a London nightclub over the weekend, prompting speculation that they're romantically involved.

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The photos, which you can see in the video above, were released amid worldwide hysteria over Harris' ex, Taylor Swift, who has quickly moved on from their relationship with actor Tom Hiddleston. The couple has been photographed on three different continents in less than a month.

As for Harris and Scherzinger, the source described them as "casual friends."

See photos of Calvin Harris and Taylor Swift together:

"If they see each other at a club or a party, they will chill," the source continued. "They are not hooking up or hanging out."

Additionally, the rumors are further negated by the fact that the pop singer is allegedly still completely off the market -- she's still tied to tennis star Grigor Dimitrov. Dimitrov previously dated Maria Sharapova.

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