Maxim Shemetov / Reuters
Members of the female punk band Pussy Riot (from right) Nadezhda Tolokonnikova, Yekaterina Samutsevich and Maria Alyokhina sit in a glass-walled cage after a court hearing in Moscow, Aug. 17.
MOSCOW -- The Russian Orthodox Church on Sunday called for members of the Pussy Riot punk band to repent, on the eve of an appeal court hearing they hope will quash their two-year jail sentences for performing an anti-Kremlin song in Moscow's main cathedral.
The three women - who belted out a "punk prayer" criticizing President Vladimir Putin's close ties to the Russian Orthodox Church - were convicted of "hooliganism motivated by religious hatred" by a district court on Aug. 17.
The tough jail sentences they received saw the West sharply criticize Putin and the Kremlin because of doubts over the independence of the judiciary, and global celebrities, including British musician Paul McCartney and U.S. pop singer Madonna, called for leniency for the women.
Vladimir Legoida, a senior church spokesman, said their stunt "must not remain unpunished whatever the justification," but said that any repentance, if expressed, should be taken into account.
Protesters put head covers on sculptures in Norway to show their continued support of the jailed Russian punk rock group called "Pussy Riot." NBCNews.com's Dara Brown reports.
"The church sincerely wishes for the repentance of those who desecrated a holy place, certainly it would benefit their souls," Legoida said in a speech.
"If any words of the convicts indicate repentance ... we would wish that they are not left unnoticed and those who violated the law get a chance to mend their ways."
A church statement after the August verdict indicated that the clergy would back a pardon or a reduced sentence, but that would have required Nadezhda Tolokonnikova, 22, Maria Alyokhina, 24, and Yekaterina Samutsevich, 30, to admit their guilt, something their lawyers say they will not do.
"If they (the church) mean repentance in the sense of a crime ... it definitely won't happen. Our clients won't admit guilt. A call for that is pointless," lawyer Mark Feigin told independent television channel Dozhd on Sunday.
Earlier this month, Russian Prime Minister Dmitry Medvedev said that keeping the women in prison any longer would be "unproductive" — a statement that encouraged hopes the appeals court could set them free. But skeptics pointed at the Kremlin's ongoing crackdown on dissent, saying that their release would be unlikely.
A recent official opinion poll showed that more than half of Russians are critical of what Pussy Riot did and consider their two-year jail sentence to be a just one, with less than a third saying the opposite.
Members of the band Pussy Riot, arrested in February after storming a Moscow cathedral, were sentenced to two years in jail Friday. NBC's Duncan Golestani reports.
The trio's legal team and relatives hold out little hope that the sentences - which they believe are excessively harsh - will be quashed or reduced at the hearing scheduled for Monday, whether they repent or not.
"The sentence is predetermined; their repentance will not affect it in any way," Stanislav Samutsevich, father of one of the jailed women, told Reuters.
"The fact the church is calling for that is nothing but a public relations move to sustain their reputation in the eyes of the public, as the church says it is separate from the state."
Patriarch Kirill, the head of the Russian Orthodox Church, has called Putin's 12-year rule a "miracle of God" and backed his presidential election campaign earlier this year.
Kirill dismissed criticism of his backing for the Kremlin on Friday, telling students that close ties between the church and state helped protect and develop society.
Reuters and The Associated Press contributed to this report.
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