Spain's most successful pop group of the past decade, Latin Grammy winner La Oreja de Van Gogh, has a new lead singer.

Leire Martínez, 29, was presented to the media in Madrid on Monday. She joins the four male founder-members of LOVG ahead of the Sept. 2 worldwide release of a new album, a year after original vocalist Amaia Montero exited to pursue a solo career.

With the exception of veteran Miguel Bosé, whose latest album "Papito" has sold more than 1.2 million units globally, according to Warner Spain, LOVG was the last Spanish act to find commercial success in the United States and much of Latin America. LOVG's four studio and one live album from 1998-2006 have sold more than 6.2 million units worldwide, says the band's label Sony BMG Spain.

LOVG's first post-Amaia album has no title as yet, but the first single is called "El último vals". The Nigel Walker-produced album was recorded in France and Madrid, and is being remastered at Gateway Mastering in Portland, Maine, by veteran Bob Ludwig, who has worked with Jimi Hendrix, Nirvana, U2 and Coldplay.

When asked if she thought LOVG could renew its successful path in the U.S. and Latin America, Leire told Billboard.biz, "You never know. We haven't set ourselves any goals, because that would be a mistake. The important thing is to enjoy ourselves".

LOVG will travel to the U.S. and Latin America in September for promo, and a 2009 stateside tour is planned.

In response to comments that Leire's voice was similar to that of Amaia's, Leire says, "I think it's good that we sound alike. It's the Oreja sound that we want to keep alive". Pianist Xabi San Martín adds, "They don't really sound the same, it's just that the new songs are Oreja tunes too. They have the same style".

Sony BMG Spain president Carlos López agrees. "They haven't got the same voice at all. The thing is they all come from the same city [San Sebastian, Basque Country, northern Spain], so they have the same accent."

Guitarist Pablo Benegas notes, "Although this is the beginning of a new stage in our careers, joining up with Leire was like recapturing our beginning [with Amaia], when we all got to know each other at university".

Martínez adds, "I hardly know Amaia. We met one day and we said 'good luck' to each other."