Tim McGraw sued by Curb Records in federal court

Curb Records is suing Tim McGraw. Again.

The Nashville, Tenn.-based label has filed a lawsuit against the country music star and his current label, Big Machine Records, in federal court, alleging copyright infringement and breach of contract.

Curb also sued McGraw, 45, in Tennessee state court in 2011, but has thus far failed to keep McGraw from recording new musicunder a new agreement with Big Machine, which put out "Two Lanes of Freedom" earlier this year. Curb had claimed in the 2011 lawsuit that McGraw was recording new music too early in an effort to fulfill his contractual obligations.

The new lawsuit asks for a return of master recordings, compensatory and punitive damages and an injunction against future recording or releases until its contract with McGraw has been fulfilled. The state case remains in front of a judge, but the court allowed McGraw to record for a new label in a decision that's been upheld on appeal.