Bon Jovi are currently touring Europe and played to 72,000 people in Munich, Germany on Friday (24May08) night.
And the frontman saluted the rising star in the middle of their set by launching into a rendition of her recent hit single Mercy - telling the crowd, "I love that song."
Bon Jovi's tour concludes in Twickenham, England, on 27 June (08).
Source: WENN