Boston kicks off Marathon Weekend

The countdown to the 120th Boston Marathon is on as the city kicked off Marathon Weekend with events and festivities.

Saturday morning, Boston Police Officer Kim Tavares sang the national anthem to begin the Boston Athletic Association’s 5K race. More than 10,000 runners participated in the annual run around Boston Common.

Two celebrities held events at stores on Newbury Street. At the Puma store on Newbury Street, Patriots wide receiver Julian Edelman taught a workout class and said he was excited to be back for the weekend.

"The city’s definitely alive right now and it’s great to be here," said Edelman.

Comedian Kevin Hart was a little further down on Newbury Street at the Nike store, getting runners pumped up for Monday. Hart teamed up with Nike and Uber to host a training run to get people motivated. Over at Spalding Rehab, actor and Dorchester native Mark Wahlberg visited patients and staff.

Security is also on the minds of many people. Mayor Marty Walsh said Boston is ready and officials are prepared to keep everyone at the marathon safe.

Related: Boston Marathon celebrates 50 years of women in the race

(Copyright (c) 2016 Sunbeam Television. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)