Half of the world's top 30 women will play in Birmingham at the Aegon Classic this summer, including British number one Johanna Konta.
The pre-Wimbledon tournament announced the strongest field in its 35-year history, led by Australian Open champion Angelique Kerber.
World number 22 Konta, 24, will lead the British challenge, with two wildcards yet to be announced.
The tournament takes place at the Edgbaston Priory Club from 11-19 June.
Top-10 players Simona Halep and Belinda Bencic have also entered along with former world number one Caroline Wozniacki.
They will be joined by two-time grand slam champion Svetlana Kuznetsova and French Open finalist Lucie Safarova.