Question: Led zepelins first concert tour of scandinavia was billed under this name, a band that worked with several lead guitarists including Eric Clapton, jimmy page, and jeff beck
{'answer': 'The Yardbirds', 'supporting_facts': [['Led Zeppelin Scandinavian Tour 1968', 0], ['The Yardbirds', 0], ['The Yardbirds', 2]]}