diff --git a/CHANGELOG.md b/CHANGELOG.md
index 865e002fd04a..8eaedb138cab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -37,6 +37,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
+### Features
+
+* [\#9750](https://github.com/cosmos/cosmos-sdk/pull/9750) Emit events for tx signature and sequence, so clients can now query txs by signature (`tx.signature='<base64_sig>'`) or by address and sequence combo (`tx.acc_seq='<addr>/<seq>'`).
+
 ### Improvements
 
 * (cli) [\#9717](https://github.com/cosmos/cosmos-sdk/pull/9717) Added CLI flag `--output json/text` to `tx` cli commands.
diff --git a/types/events.go b/types/events.go
index 9c495a9da2a7..27a0017635af 100644
--- a/types/events.go
+++ b/types/events.go
@@ -227,7 +227,6 @@ var (
 
 	AttributeKeyAccountSequence = "acc_seq"
 	AttributeKeySignature       = "signature"
-	AttributeKeyFee             = "fee"
 
 	EventTypeMessage = "message"
 
diff --git a/x/auth/client/cli/query.go b/x/auth/client/cli/query.go
index e38dac0e3dd6..ececfc69212a 100644
--- a/x/auth/client/cli/query.go
+++ b/x/auth/client/cli/query.go
@@ -218,12 +218,12 @@ $ %s query txs --%s 'message.sender=cosmos1...&message.action=withdraw_delegator
 func QueryTxCmd() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "tx --type=[hash|acc_seq|signature] [hash|acc_seq|signature]",
-		Short: "Query for a transaction by hash, \"<addr>/<seq>\" combination or comma-separated signatures in a committed block",
+		Short: "Query for a transaction by hash, addr++seq combination or signature in a committed block",
 		Long: strings.TrimSpace(fmt.Sprintf(`
 Example:
 $ %s query tx <hash>
-$ %s query tx --%s=%s <addr>/<sequence>
-$ %s query tx --%s=%s <sig1_base64>,<sig2_base64...>
+$ %s query tx --%s=%s <addr>:<sequence>
+$ %s query tx --%s=%s <sig1_base64,sig2_base64...>
 `,
 			version.AppName,
 			version.AppName, flagType, typeAccSeq,
diff --git a/x/auth/client/testutil/suite.go b/x/auth/client/testutil/suite.go
index 626e0130f42a..58a4e577cbb2 100644
--- a/x/auth/client/testutil/suite.go
+++ b/x/auth/client/testutil/suite.go
@@ -425,76 +425,6 @@ func (s *IntegrationTestSuite) TestCLIQueryTxCmdByEvents() {
 	}
 }
 
-func (s *IntegrationTestSuite) TestCLIQueryTxsCmdByEvents() {
-	val := s.network.Validators[0]
-
-	account2, err := val.ClientCtx.Keyring.Key("newAccount2")
-	s.Require().NoError(err)
-
-	sendTokens := sdk.NewInt64Coin(s.cfg.BondDenom, 10)
-
-	// Send coins.
-	out, err := s.createBankMsg(
-		val, account2.GetAddress(),
-		sdk.NewCoins(sendTokens),
-	)
-	s.Require().NoError(err)
-	var txRes sdk.TxResponse
-	s.Require().NoError(val.ClientCtx.Codec.UnmarshalJSON(out.Bytes(), &txRes))
-	s.Require().NoError(s.network.WaitForNextBlock())
-
-	// Query the tx by hash to get the inner tx.
-	out, err = clitestutil.ExecTestCLICmd(val.ClientCtx, authcli.QueryTxCmd(), []string{txRes.TxHash, fmt.Sprintf("--%s=json", tmcli.OutputFlag)})
-	s.Require().NoError(err)
-	s.Require().NoError(val.ClientCtx.Codec.UnmarshalJSON(out.Bytes(), &txRes))
-
-	testCases := []struct {
-		name        string
-		args        []string
-		expectEmpty bool
-	}{
-		{
-			"fee event happy case",
-			[]string{
-				fmt.Sprintf("--events=tx.fee=%s",
-					sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(10))).String()),
-				fmt.Sprintf("--%s=json", tmcli.OutputFlag),
-			},
-			false,
-		},
-		{
-			"no matching fee event",
-			[]string{
-				fmt.Sprintf("--events=tx.fee=%s",
-					sdk.NewCoins(sdk.NewCoin(s.cfg.BondDenom, sdk.NewInt(0))).String()),
-				fmt.Sprintf("--%s=json", tmcli.OutputFlag),
-			},
-			true,
-		},
-	}
-
-	for _, tc := range testCases {
-		tc := tc
-		s.Run(tc.name, func() {
-			cmd := authcli.QueryTxsByEventsCmd()
-			clientCtx := val.ClientCtx
-
-			out, err := clitestutil.ExecTestCLICmd(clientCtx, cmd, tc.args)
-			s.Require().NoError(err)
-
-			var result sdk.SearchTxsResult
-			s.Require().NoError(val.ClientCtx.Codec.UnmarshalJSON(out.Bytes(), &result))
-
-			if tc.expectEmpty {
-				s.Require().Equal(0, len(result.Txs))
-			} else {
-				s.Require().NotEqual(0, len(result.Txs))
-				s.Require().NotNil(result.Txs[0])
-			}
-		})
-	}
-}
-
 func (s *IntegrationTestSuite) TestCLISendGenerateSignAndBroadcast() {
 	val1 := s.network.Validators[0]