Sting, Justin Bieber, Lady GaGa to Headline TODAY Concert Series

Sting, Justin Bieber, Lady GaGa, Christina Aguilera, Keith Urban and Maxwell, among others are to headline this summer's "Toyota Concert Series on TODAY," featured at the Rockefeller Plaza. The concert series debuts May 14 with Sting expected to perform an entire half hour with the Royal Philharmonic Concert Orchestra. Other headliners -- such as the yet-to-be-named 'American Idol' winner, singer-songwriters James Taylor and Carole King, alt rock outfit Train, Latino pop singer Enrique Iglesias and many more -- will perform following dates that run through the end of August. Check out the entire lineup after the jump!

Toyota Concert Series Lineup:

May

14 Sting
21 The Script
27 "American Idol" winner and runner-up

June

4 Justin Bieber
8 Christina Aguilera
11 Rascal Flatts
18 James Taylor and Carole King
25 Maxwell

July

2 Maroon 5
9 Lady Gaga
16 Enrique Iglesias
23 John Mayer
30 Carrie Underwood

August

6 Train
13 Ke$ha
20 Keith Urban
27 Katy Perry