From a Dodgers press release:
Pregame entertainment on Opening Day will include Grammy Award-winning country star LeAnn Rimes singing the National Anthem, Grammy Award-winning frontman and producer of the Black Eyed Peas Will.i.am throwing out a ceremonial first pitch and legendary journalist and Dodger season ticket holder Larry King announcing "It's time for Dodger Baseball" at the start of the game. [...]
Fans can enter the stadium parking lots as early as 10:10 a.m. on Tuesday and the stadium as early as 10:40 a.m. Fans are encouraged to arrive early, carpool and take the Dodger Stadium Express shuttle from Union Station to help alleviate parking congestion. The Dodger Stadium Express will pick up fans at the Patsaouras Bus Plaza adjacent to the east portal of Union Station every 10 minutes prior to the start of the game starting at approximately 11:00 a.m. and drop them off in the parking lot behind left/center field. Dodger tickets will be honored as fare. [...]
New portable concessions areas have been added on the Reserve level to help alleviate waiting times for concessions. [...] Fans can also visit the six new Guest Relations Centers located throughout the stadium for any gameday questions or comments. The new Guest Relations Centers are located at Reserve level section 39, Reserve level section 40, between sections 112 and 114 on the Loge level, on the Field level at each baseline box club and in the left field pavilion.
New merchandising options at Dodger Stadium this season include customizable jerseys, the launch of a new signature series T-shirt for men, women and kids that will be available all season, an Opening Day merchandise line that is available for women and kids for the first time, a new Opening Day pin and 17 new signature styles for New Era fitted hats that are stadium exclusives.
Fans arriving early to the stadium on Tuesday can enjoy pregame activities including Dodger alumni Tommy Davis and Maury Wills signing autographs in Autograph Alley beyond center field and the joint armed forces presenting a giant flag on the field. United States Navy FA-18C Hornets from Strike Fighter Squadron 97 will fly over Dodger Stadium at the start of the game. The Hornets recently returned from an eight-month combat cruise in support of Operation Enduring Freedom and are based out of Lemoore Naval Air Station.
Steve Finley, the most recent Dodger center fielder to receive a Rawlings Gold Glove award, will present Matt Kemp with his award during pregame ceremonies. Eric Karros, who earned Silver Slugger honors in 1995, will present Andre Ethier and Matt Kemp with their Silver Slugger trophies on the field as well.