Avril Lavigne wants everyone to be realllly jealous of her -- because why else would she post a video of herself looking great in a bikini while vacationing in the Bahamas?!
The "What the Hell" singer just shared some highlights from her visit to the Atlantis resort on her YouTube channel -- showing her performing, swimming in the ocean and hanging out in a lazy river.
"Man, I wish every day was like this," the 26-year-old exclaims while splashing around in the Caribbean.
The only thing missing: Boyfriend Brody Jenner, who doesn't appear in the video.