Miley Cyrus Tweets She Is Having "Best Day Ever" and Drinks Green Juice

20-year-old singer can be seen giving her pup a kiss

Looks like Miley Cyrus is in her happy place.

In fact, she confirmed that she is, tweeting a pic with her dog and a friend, with the caption "Best Day Ever" and several emoji rainbows.

The green-tinted pic shows the 20-year-old pop star with her hair up in a little bun, lying down on a leopard pillow and giving her furry friend a big kiss on the mouth. It's unclear if she is in bed or on the couch, but she looks perfectly content smooching her pup.

Maybe the "Wrecking Ball" singer, who has been battling a cold, is feeling better?

A source told E! News exclusively on Wednesday, Oct. 16, that Cyrus "wore herself down through the VMAs to album launch and was exhausted after the Ellen appearance."

Cyrus hinted that she might be back on the mend after adding a snapshot of a green energy drink (or maybe it's juice?), tweeting "get your green on" and a green heart.

It was a week filled with milestones for Cyrus: Her fourth studio album Bangerz debuted in the top spot this week on iTunes and Billboard's Top 200 album and a source revealed exclusively to E! News that she is just starting to focus on a "huge" performance for the American Music Awards on Nov. 24.