Taylor Swift Rings in 26th Birthday at Christmas Party with Calvin Harris!

Taylor Swift and her boyfriend Calvin Harris are still going strong as a couple and they were spotted together while celebrating her 26th birthday on Sunday (December 13) in Los Angeles.

The music superstars were both in attendance at a Christmas-themed party hosted by Apple exec Jimmy Iovine, whose son Jamie posted a photo with the couple on Instagram.

“I was just adopted by @calvinharris and @taylorswift mom and dad are gonna show me the good life now,” he captioned the below pic.

The home that the party was held at was turned into a winter wonderland with fake snow, sledding areas, live penguins, and snowmen.

Click inside to see more photos and a video of Taylor Swift at the party…