The post included an adorable photo of the celebrity couple hugging and smiling for the camera infront of a huge bunch of red roses.
Keely is looking gorgeous and glam in the photo, wearing a stylish sheer blouse featuring a pretty floral pattern. Pierce also looked very dapper in the snap, opting for a smart black shirt for the special occasion.
To caption the sweet photo, the star wrote a cute birthday message to his wife, declaring his love for her.
Pierce said: "Sixty roses for my brown eyed girl on her 60th birthday. Forever happy and blessed was I to be sitting there when you walked around the corner early one morning in Cabo San Lucas @keelyshayebrosnan🌹"
His wife Keely Shaye Brosnan was previously a journalist and met Pierce while in Mexico back in 1994.
The 70-year-old actor Pierce and wife Keely, who is now 60-years-old have been married for 22 years and have two children together: Dylan and Paris.
The couple regularly post photos on their Instagrams of them enjoying some quality time together, along with snaps with their children.
The star captioned the holiday snap: "Once more — the magic of the Greek islands and her people have captured my heart. Thank you all for your gracious welcome. Until next time…antio sas 🙏
Fans were quick to comment on the post, hoping the star is teasing a new Mamma Mia movie.
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