They’re singing “Happy Birthday” this week at the Hard Rock Casino Northern Indiana. But it might be hard to hear the tune over guests’ seemingly unquenchable appetite for wagering at the Gary entertainment destination.

Data released Thursday by the Indiana Gaming Commission (IGC) show Hard Rock in April was the highest earning casino in the Hoosier State for a seventh consecutive month — once again surpassing the former earnings leader, Horseshoe Casino in Hammond, for “win,” or revenue after paying successful bettors.

Hard Rock’s win from slot machines and table games totaled $38.2 million for the month, a 1% decrease increase compared to its March win, but 16.5% more than Horseshoe’s April win of $31.9 million, which also was down 7.3% versus March, according to the IGC.