Judy Garland weekend: “A Garland for Judy! A Cabaret Celebration of the Judy Garland Songbook” from 8 to 10 tonight and “Judy! A Legendary Film Career” from 5 to 7 p.m. Sunday, both at The Center for Arts at the Armory, 191 Highland Ave., Somerville. Tickets are $25 for one show or $40 for Friday and Sunday show package.

Top Boston vocalists Lynda D’Amour, Pamela Enders, Jinny Sagorin and Randy Zinkus join with musical director Tom LaMark to perform musical highlights from the career of Judy Garland, including selections from such films as “Meet Me in St. Louis,” “Easter Parade,” “A Star is Born,” “Summer Stock” and “Strike Up the Band,” as well as duets performed with everyone from Barbra Streisand to Mickey Rooney and selections from her one-woman concerts at venues including Carnegie Hall, the Hollywood Bowl and the Boston Common and Boston Garden. The show is hosted by John Fricke, considered the world’s preeminent Garland and “Wizard of Oz” author and documentarian, who will share behind-the-scenes anecdotes about Garland’s life and career.

The Emmy Award-winning Fricke is back Sunday in a review of highlights from Garland’s motion picture work, tracing her on-screen performance arc from age 7 as one of The Gumm Sisters in 1929 (“The Big Revue”) to 1963 (“I Could Go On Singing”) – again with stories and quotes from people she worked with that were gathered while researching the book, “Judy: A Legendary Film Career” and for appearances as a guest presenter at the Turner Classic Movies Festival in Los Angeles and on the TCM cable network.

Grooversity Festival from 1 to 6:30 p.m. Saturday at the East Somerville Community School, 50 Cross St., Somerville. Free.

This annual event presented by the Somerville community bears the motto “World drumming for entertainment, education and social change” and is targeted at “anyone who wants and needs to get their positive groove on.”

Organizer Marcus Santos – a hand drummer from Brazil – delivers performances by Ben Paulding & master Ashanti drummer Emmanuel Attah Poku, Bloco AfroBrazil, Sheboom and World Percussion Ensembles from the Somerville Public Schools. There will also be afternoon workshops by Santos and master drummers Bas Janssen, Gino Figliola, Fabrizio Cavallaro and Sergio Bellotti. The event is to be live streamed so it can be watched around the world, and there are prizes available for onsite and online attendees. Information is here or at (917) 719-0127.

Novemberfest from 2 to 11 p.m. Saturday at Aeronaut Brewing, 14 Tyler St.. Free.

The new Somerville brewery offers eight hours of Americana music, beer and Chinese food from from Mei Mei Street Kitchen. The schedule: Greg Klyma plays at 3:15 p.m.; Patrick Coman (featuring Joe Klompus and Peter Parcek) at 4:15 p.m.; Eric Royer’s One Man Band at 6 p.m.;  Fendrick & Peck at 7:30 p.m.; and Comanchero at 9:15 p.m. Information is here.

“Legally Blonde: The Musical” at 8 p.m. Saturday and 2 p.m. Sunday at the Sala de Puerto Rico at the Massachusetts Institute of Technology’s Stratton Student Center, 84 Massachusetts Ave. Tickets are $15 for the general public; $6 for MIT and Wellesley students; and $10 for MIT faculty, staff, community and non-MIT Students, seniors and children. Non-binding reservations can be made here.

MIT does Harvard in this production of the award-winning musical based on the movie “Legally Blonde,” which follows the transformation of vapid Elle Woods after she follows her boyfriend to Harvard Law. At school, she struggles with peers, professors and romance, but she realizes her potential and sets out to prove herself to the world. (Was that a spoiler?) Sami Lewis directs this musical with a book by Heather Hach and music and lyrics by Laurence O’Keefe and Nell Benjamin. Mackenzie Devoe stars. Information is here.

Pianist Sarah Cahill from 4 to 6 p.m. Sunday at Killian Hall in the Hayden Library Building at 160 Memorial Drive at the Massachusetts Institute of Technology. Free.

Bay area pianist, writer and producer Sarah Cahill has commissioned, premiered and recorded numerous compositions for solo piano (including pieces by Lou Harrison, Julia Wolfe, Ingram Marshall, Toshi Ichiyanagi, George Lewis and Leo Ornstein) as well as researched and recorded music by the important early 20th century American modernists Henry Cowell and Ruth Crawford. As a result, several composers have dedicated works to her, including John Adams, Terry Riley, Frederic Rzewski, Pauline Oliveros, Annea Lockwood and Evan Ziporyn.

This weekend she brings the world Premiere of Ziporyn’s “Terry Tunes” and performs works by Terry Riley, Yoko Ono and others.