Chris Young and Cassadee Pope are together again, this time in the writing room.

Pope posted a selfie on her social media accounts on Thursday (March 24) showing herself with Young and producer Corey Crowder. The caption reads, "Those who duet together, write together...." Whether there will be another duet in the future or whose album the song — or songs — might appear on is enough to keep fans intrigued.

Crowder, Josh Hoge and Young wrote the singer's "Think of You" together. Currently in the Top 10 on the country charts, Young knew instantly that Pope would be the right duet partner.

“When I heard her sing live I knew she would be the perfect person to sing on ‘Think of You’ and I was hoping too that we could hit the road together at some point once the new record releases,” he said.

“Think of You” is the second single released from Young’s fifth studio album, I’m Comin’ Over, which was released this past November. Young earned his seventh career No. 1 single with the album’s title track. His album, which he co-produced, also went to No. 1 on Billboard's Top Country Albums chart in its first week.

The two singers have been inseparable in 2016. Pope opened for Young's I'm Comin' Over Tour earlier this year, and they'll share the stage once again at the ACM Awards in April. Last month, the two singers performed together 35,000 feet in the air as part of celebrating a major milestone for Southwest Airlines. The airline has been flying into Nashville International Airport for 30 years, and the media day turned into a concert in the sky with a performance by Young and Pope.

Standing near the cockpit, the two singers held microphones and sang their current duet “Think of You” as passengers looked on and snapped photos and took videos on their phones 35,000 feet in the air. Not their typical venue, Young and Pope impressed, trading verses and harmonizing on the chorus.

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