While personally I'm not that wild about Toulouse-Lautrec there was plenty of other great stuff at the exhibition, I loved the posters of Chéret and Steinlen for example.
Dance Hall Days - French posters from Chéret to Toulouse–Lautrec
Poster "Musée Grévin" by Jules Chéret
Tournée du Chat Noir by Théophile Alexandre Steinlen
Van Gogh spent time in Montmartre as well.
Agostina Segatori dans le Café du Tambourin
by Vincent Van Gogh
Exhibit at the National Gallery of Art, Washington D.C.
