Did you know that, in November, the original five members of Blue Öyster Cult reunited and performed a 40th anniversary show at the Best Buy Theater in New York City? Over two sets and 22 songs, the group spanned their impressive - often brilliant - history.

Do not expect a similar lineup or such an expansive a song list when BÖC plays a free show Saturday in the Mohegan Sun Wolf Den. Nonetheless, as long as main Öysters Eric Bloom and Donald "Buck Dharma" Roeser are holding down the fort - and they are - this is legit stuff. (It's also true that ex-Utopia bassist/vocalist Kasim Sultan, an all-world talent, is now in the band. Interesting.)

OK: remember to scream for the one-two punch of "Flaming Telepaths"/"Astronomy," hope they open with "Stairway to the Stars" or "This Ain't the Summer of Love," and rejoice if they pull out "Then Came the Last Days of May."

- RICK KOSTER

Blue Öyster Cult, 8 p.m. Saturday, Mohegan Sun Wolf Den; free; 1-888-664-3426; mohegansun.com.