Blake Shelton is continuing to make headlines, but this time it is not about his relationship status.

Shelton took to social media to tease a big announcement to his fans on Sunday. “Just when things were about to quiet down around here… I’ve got something BIG to announce tomorrow,” the country singer tweeted, adding the hashtags “#shocking” and “#staytuned.”

Fans sent their best guesses, including new music or a wedding, but he shot them all down.

“No way yall are gonna guess this one,” he tweeted. “It’s just WAY too insane…”

While is unclear if Shelton’s announcement has anything to do with his new girlfriend Gwen Stefani, he did say his news was a combination of personal and private.

Shelton and Stefani took over the internet after confirming they were dating on Nov. 4. The Voice judges have shown a lot of PDA over the past week.

Fans can find out what Shelton’s news is Monday morning on The Today Show. “Yall will have to watch @TODAYshow with Kathy and Hoda tomorrow to find out!!!” Shelton added.