  MAGIC has been performing optically triggered Target of Opportunity
observations of flaring blazars since the beginning of its scientific
operations. The alerts of flaring blazars originate from Tuorla Blazar
Monitoring Programme, which started the optical monitoring of candidtate TeV
blazars in 2002 and has now collected up to eight years of data on more than 60
blazars. These ToO observations have resulted in the discovery of five new VHE
gamma-ray emitting blazars (S5 0716+714, 1ES 1011+496, Mrk 180, ON 325 and B3
2247+381). In addition part of the discovery of BL Lac and the discovery of 3C
279 was made during a high optical state. In this contribution we present a
detailed analysis of the optical light curves which are then compared to MAGIC
observations of the same sources. We aim to answer the question: "Is there a
connection between optical and VHE -ray high states in blazars or have we just
been lucky?"
