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We consider interesting results on the kinematics of the bulge, beginningwith Mould's (1983) measurement of the velocity dispersion of the late M giantsin the bulge, and carrying the discussion on to the present day, to discuss thelargest survey ever undertaken of luminous SiO maser AGB stars. This SiO maserpopulation of AGB stars is too luminous to have evolved from the oldestglobular cluster age stellar population, yet has a velocity dispersionconsistent with the oldest populations (the red clump stars) in the bulge. Weidentify two groups of maser stars by their kinematics; the subgroup withkinematics similar to the bulge has the highest bolometric luminosities withsome giants reaching $M_{bol}<-6$. In a new result, we find that the mostluminous maser stars with bulge kinematics are concentrated to the Galacticplane with the most luminous maers being found at $b<\mid 1.5^\circ \mid$;while the disk maser population shows no such difference. This mirrors asimilar concentration to the Galactic Center found for long period Miras, notedin earlier studies. We conclude that the maser population represents anotherfacet of the growing tension between evidence supporting a bulge populationdominated by old stars, and a significant fraction of intermediate age stars.

From BRAVA to BAaDE: A New Kinematic Survey of the Bulge AGB