Michael Phelps and longtime girlfriend, Nicole Johnson are already engaged! The couple announced their engagement in photo-sharing site, Instagram, along with their adorably sweet photos together on Saturday evening, Hello! Magazine revealed.

Michael Phelps proposed to girlfriend Nicole Johnson on Feb. 21. Though the 29-year-old Olympic gold medalist didn't have the best year in 2014, this 2015 seems to be a year to look forward to after the happy news of his engagement.

As the newly-engaged couple celebrate their happy moment by sharing the news with fans on social media. And we are giving you 6 interesting scoops about Michael Phelps and Nicole Johnson.

1. Maryland-born Michael Phelps first started dating former beauty queen, Nicole Johnson in 2007. While the pair have had an on-and-off-again relationship for the past 8 years, they are now clearly making their union official, Gossip Cop revealed.

2. After they broke up, Phelps and Johnson maintained a good friendship. According to Bustle, they reunited in Thanksgiving 2014 after they split up around Christmas 2011. Their reunion was spent together with family and friends.

3. While Phelps is a record-setting Olympic swimmer and gold medalist, Johnson was a former beauty titlist who won the "Miss California USA" crown in 2010, CNN revealed.

4. Phelps studied sports marketing and management in University of Michigan in Ann Harbor. Johnson, on the other hand, graduated with honors from USC in 2007 with a Bachelor's degree in communication, focusing in sports entertainment, Heavy.com reported.

5. The newly-engaged couple will both celebrate their 30^th birthday this year, Zimbio.com learned. Phelps' birthday is June 30 while Johnson is July 12.

6. The Michael Phelps-Nicole Johnson engagement comes as Phelps is finishing a six-month suspension from USA Swimming for his second drunken-driving arrest. As reported by Page Six, the suspension will end on March 6. And by April, Phelps is expected to return to competition at Mesa, Arizona.

Michael Phelps and Nicole Johnson have not announced any wedding date yet. But the news was shared by the couple on their respective Instagram accounts with photos of them laying on the snow and noticeably seen are the couple's huge smiles and Nicole's gigantic sparkler.