  We observed a large sample of B & Be stars in the Magellanic Clouds,
respectively 176 and 344 stars, with the multi-object spectrograph GIRAFFE at
ESO/VLT. We obtained spectra at different settings at various epochs. It
allowed us to discover several spectroscopic binaries with short and
intermediate periods. By cross-correlation in coordinates with the MACHO
database, we found the light-curves for 350 stars in our samples. Among them,
19 (14 new) are photometric binaries (5 in the LMC, 14 in the SMC). Among these
19 photometric binaries 6 are also spectroscopic binaries (5 in the LMC, 1 in
the SMC) and 2 others are Be stars (2 in the SMC). For all these binaries the
orbital period was determined. Among our sample, 134 Be stars were observed by
MACHO and, for these stars, we searched for short-term photometric variability.
We have found 13 objects among Be stars in the SMC which present short-term
photometric variability (P$<$2.5d) with amplitude lower than 0.1 magnitude.
This short-term variability is often superimposed to a long-term variation.
