Queen Elizabeth II is set to officially celebrate her 90th birthday in a series of weeklong events and official engagements that will start on Friday.

Many royal watchers and Londoners are looking forward to witness and enjoy the festivities lined up to celebrate the Queen’s official birthday on Saturday. Queen Elizabeth II turned 90 years old in April, however, she also has an official birthday set in June following British royal customs. The festivities will begin on Friday, June 10 where a mass service will be held in honor of the Queen at St. Paul’s Cathedral, Evening Standard reported.

Religious leaders, politicians and invited guests are expected to attend the televised service. The royal monarch, as well as Prince Philip, Prince Charles and the Duchess of Cornwall will then host a lunch affair for the visiting Governors-General at the Buckingham Palace. Friday also marks a special day for Prince Philip, who will celebrate his 95th birthday on Friday.

Saturday will be a big celebration day where the Queen and members of the royal family will participate in the annual Trooping the Colors, also known as the Queen’s birthday parade. The parade will also give Queen Elizabeth the opportunity to inspect her personal troops. The event will start at around 10 a.m. and will culminate with an annual Royal Airforce flypast where the royal monarch and her family will witness the airshow on the Buckingham Palace balcony. The Duke and Duchess of Cambridge are said to be planning to bring Princess Charlotte, along with Prince George, to the event.

The Queen’s 90th birthday festivities will continue with a huge street party to be held on Sunday at The Mall, as stated in the same report. The street celebrations, organized by the Queen’s eldest grandchild Peter Phillips, will include a “hamper-style” lunch, including a carnival parade. Queen Elizabeth II and Prince Philip are also expected to listen to speeches at a stage to be set up at the Queen Victoria Memorial. The royal couple will then join their grandsons Prince William and Prince Harry in a royal box to witness celebrations for that day.

The incoming work week will also mark a series of events and engagements for the Queen. The royal monarch is expected to attend the Service for the Order of the Garter on June 13, to be held at Windsor’s St. George’s Chapel. The following days, June 14 until June 18, will also be filled with events where Queen Elizabeth is said to enjoy a day or two at the Royal Ascott’s races, as stated in the same report. The royal monarch will also attend other official engagements during the work week and will reportedly spend a relaxed day on June 19.