Drake's steamy message to Rihanna during surprise appearance at OVO Fest

Speculation as to Drake and Rihanna's relationship continues to grow after Rihanna made a surprise appearance during Drake's show at OVO Fest in Toronto on Monday night (2 August).

The Needed Me star flew fresh from a Paris concert on her Anti World Tour to make an unexpected entrance, in keeping with a number of suggestive onstage hook-ups with the Canadian star this year.

Before performing their latest collaboration Too Good, the One Dance rapper – currently on his Summer Sixteen tour with Future in the US – told the Bajan singer: "You showed up two nights in a row for my city, you might have to go half on a baby."

The onstage chemistry between Riri and Drake was undeniable with the Controlla star unable to keep his eyes off the superstar.

E! News estimated that Rihanna's trip to Canada took in an eight-hour plane ride. This isn't the first time the pair have hooked up onstage in 'surprise' appearances.

Previously, Drake joined Rihanna at her concert in Miami (15 March) and The Forum in Los Angeles (5 May) for a special performance while preparing for his Summer Sixteen Tour with Future.

A source told E! News: "He still loves her and never stopped. They are having fun spending time with each other. Their music together got them close again."

Having been linked together back in 2010, the pair were recently said to have spent four nights together during Rihanna's London dates in July.

After they partied at members clubs' Tramp and Chiltern Firehouse, Mail Online released photos of Drake leaving Rihanna's hotel early in the morning on various occasions, reportedly even wearing one of her jumpers.

Speaking about Drake earlier this year, Rihanna told Vogue: "Everything he does is so amazing."
And on their collaborations, she added: "We would go to (a studio) in the Caribbean and just dance and drink and smoke and flirt."

Fans captured a few of their affectionate moments on film on YouTube.