  This is a progress report of the study of pulsating main-sequence stars in
the LMC. Using the OGLE-II photometry supplemented by the MACHO photometry, we
find 64 Beta Cephei stars in the LMC. Their periods are generally much longer
than observed in stars of this type in the Galaxy (the median value is 0.27 d
compared with 0.17 d in the Galaxy). In 20 stars with short periods
attributable to the Beta Cephei-type instability, we also find modes with
periods longer than 0.4 d. They are likely low-order g modes, which means that
in these stars both kinds of variability, Beta Cephei and SPB, are observed. We
also show examples of the multiperiodic SPB stars in the LMC, the first beyond
our Galaxy.
